Halloween Rice Krispies treats are an easy Halloween party food that can be made in 4 different ways! Simple instructions for making delicious Halloween treats.

Decorated Halloween Rice Krispies Treats on a black cloth

Rice Krispies Treats are one of the easiest desserts you can make and these Halloween rice krispies treats take them to the next level with 4 easy Halloween themed decorations.

We’re sharing our basic rice krispies treats recipe with you but you could also use our Oreo rice krispies treat recipe if you want to have even more fun.

If you don’t have time to make homemade treats no worries, you can also decorate store bought rice krispies treats and I promise you the kids will love them just as much!


Once your treats are ready for decorating check out the instructions below for 4 easy ways to decorate them for Halloween.

Don’t stop there make sure you try our mummy hot dogs, nutter butter boos, and Halloween dessert pizza too!

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Decorated Halloween Rice Krispies Treats on a black cooling rack

Ingredients You’ll Need

These simple treats only need a few basic ingredients. And you probably already have several of them on hand. Here’s what to get:

  • Butter – We typically use unsalted, but in a pinch, salted will work OK.
  • Marshmallows – You can use either the small ones or the regular sized ones.
  • Rice Krispies – We typically get the name brand stuff because it tastes better, but the store brand will work too. And for some change in flavor, you could use Cocoa Krispies or other varieties. Just keep in mind, if you want to color the treats, darker Krispies won’t work as well.
  • Candy Melts – You can choose your preferred color for these because monsters really have no limits on creativity. For the designs below you’ll need white, orange, and green.
  • Other candy – We used candy eyes, chocolate chips, M&M’s, and mini Reese’s cups to create the 4 designs below but you can use anything you like!

Instructions

Step 1 – Melt the butter and prep the pan. In a large saucepan, melt the butter over medium-low heat. As it melts, use a non-stick spray to coat a 13×9 inch baking pan. If you don’t have cooking spray, you can rub it with a stick of butter so it has a bit of a coating.

Step 2 – Melt the marshmallows. When the butter has melted add the marshmallows and stir them until they have fully melted. This will take about 5 to 7 minutes.

Step 3 – Mix in the Rice Krispies. Stir in the Rice Krispies until the marshmallow mixture coats everything. 

Step 4 – Fill the pan. Use cooking spray or butter to lightly coat your hands. This will prevent the sticky mixture from getting stuck to you. While the mixture is still warm, use your hands and spatula to spread and even out the Rice Krispie treats in the pan.

Step 5 – Cool, cut, decorate, and serve. Allow the treats to cool completely before cutting them and removing them from the pan. For fun decorating ideas, see the section below about giving them some Halloween flair!

4 Halloween Rice Krispies Treats styles, pumpkin, mummy, Frankenstein, and spider, on a black plate

Halloween Rice Krispies Treats Ideas 

Halloween is a time to get creative with sweets and treats. For the parents out there, decorating treats is a fun and easy way to spend some time with your kids. And, of course, you all get to eat your tasty creations.

If you need some inspiration, here are some simple steps for giving your rice krispies treats a Halloween makeover.

Frankenstein Rice Krispies Treats decorated with colored candy melts

Frankenstein

One of the biggies, Frankenstein’s monster practically screams Halloween. Get your green melts ready, here’s what you need to do.

Step 1 – Melt green candy melts by placing them in a microwave safe dish with an opening large enough to be able to dip your rice krispies treat (we suggest a bowl) and microwaving for 30 seconds and then stirring. If it needs more time microwave for 15 seconds at a time, stirring in between, until fully melted and smooth.

Step 2 – Cut your rice krispies treats into rectangles. Take one piece and lightly press one side into the melted chocolate, just enough to coat it. After lifting out of the green melts turn it over and use a knife or the back of a spoon to smooth the melted chocolate over the surface.

Step 3 – Immediately press two candy eyes into the green surface. Place them about half an inch or so down from the top edge of the treat, leaving enough room for hair and eyebrows later. Set aside and let cool completely. Repeat steps 2 & 3 with the rest of your rice krispies treats.

Step 4 – Once the green layer has firmed up you can add the details. In a coffee mug melt about 1/2 cup of chocolate chips. Once melted and smooth spoon into a small sandwich baggie. Cut just the tip off of one corner and squeeze the chocolate down into that corner. This will now be your piping bag.

  • Hair – Start by drawing hair along the top of the treat. Just a short squiggle up and down from one edge to the other.
  • Eyebrows – In between the hair and the eyes draw a straight line across for the eyebrows.
  • Mouth – Below the eyes, just slightly below the center line of the treat, draw a curvy line as the mouth.
  • Stitches – Add one or two stitches by drawing a line and then 2-3 short lines that go the opposite way on top of the line.
  • Bolt – Place a drop of chocolate on each side of the treat and then press a mini Reese’s cup to the chocolate. These will be the bolts in Frankenstein’s neck.

Let the chocolate cool completely until it is firm then serve.

More fun Frankenstein food ideas for Halloween:

Mummy Rice Krispies Treats decorated with colored candy melts

Mummy

Another popular monster, mummies have made their way into practically anything Halloween themed. Here’s how to make these bandage wrapped cuties.

Step 1 – Melt white candy melts by placing them in a microwave safe dish with an opening large enough to be able to dip your rice krispies treat (we suggest a bowl) and microwaving for 30 seconds and then stirring. If it needs more time microwave for 15 seconds at a time, stirring in between, until fully melted and smooth.

Step 2 – Cut your rice krispies treats into rectangles. Take one piece and lightly press one side into the melted white melts, just enough to coat it. After lifting it out turn it over and use a knife or the back of a spoon to smooth the melted chocolate over the surface.

Step 3 – Immediately press two candy eyes into the white surface. Place them about half an inch or so down from the top edge of the treat, leaving enough room for some details later. Set aside and let cool completely. Repeat steps 2 & 3 with the rest of your rice krispies treats.

Step 4 – Once the white layer has firmed up you can add the details. Reheat your white melts. Once melted and smooth spoon into a small sandwich baggie. Cut just the tip off of one corner and squeeze the chocolate down into that corner. This will now be your piping bag.

Begin drawing lines across the white surface (avoiding covering the eyes). Make a mix of diagonal and straight lines that cross cross over one another. These form your mummy wrappings.

Let the chocolate cool completely until it is firm then serve.

More fun mummy food ideas for Halloween:

Spider Rice Krispies Treats decorated with colored candy melts

Spiders

We don’t know why spiders are quintessential to Halloween. Oh wait! Yes we do! They are terrifying! Follow these steps for a spider you can bite right into.

Step 1 – Melt white candy melts by placing them in a microwave safe dish (we suggest a coffee mug) and microwaving for 30 seconds and then stirring. If it needs more time microwave for 15 seconds at a time, stirring in between, until fully melted and smooth. Once melted and smooth spoon into a small sandwich baggie. Cut just the tip off of one corner and squeeze the chocolate down into that corner. This will now be your piping bag.

Step 2 – Cut your rice krispies treats into rectangles. In one corner draw your web by drawing a straight line along the short edge and then down the long edge. From the corner where the two lines meet draw two lines, equally spaced, that radiate out towards the middle of the treat. They should end so that they line up with the ends of the other two lines.

Fill in the web by drawing a curved line connecting the ends of each of the straight line. The line should be curving so that the curve faces the inner corner of the web. Repeat this step two more times so that in the end there are three segments to each triangle of the web.

Step 3 – Immediately place an M&M (whatever color you want your spider to be) on the web. This will be the body of your spider.

Step 4 – In a coffee mug melt chocolate melts that match the color of your spider. Once melted and smooth spoon into a small sandwich baggie. Cut just the tip off of one corner and squeeze the chocolate down into that corner. Place a dot at the end of each M&M for the head

Step 5 – To add the legs melt chocolate chips in a coffee mug. Once melted and smooth spoon into a small sandwich baggie. Cut just a tiny bit of the tip off of one corner and squeeze the chocolate down into that corner. This will give you a delicate little line for the legs. Draw four short lines on each side of the M&M.

Let the chocolate cool completely until it is firm then serve.

Pumpkin Rice Krispies Treats decorated with colored candy melts

Pumpkins

Step 1 – Melt orange candy melts by placing them in a microwave safe dish with an opening large enough to be able to dip your rice krispies treat (we suggest a bowl) and microwaving for 30 seconds and then stirring. If it needs more time microwave for 15 seconds at a time, stirring in between, until fully melted and smooth.

Step 2 – Cut your rice krispies treats into rectangles. Take one piece and lightly press one side into the melted orange melts, just enough to coat it. After lifting it out turn it over and use a knife or the back of a spoon to smooth the melted chocolate over the surface. Set aside and let cool completely. Repeat steps with the rest of your rice krispies treats.

Step 3 – Once the orange layer has firmed up you can add the details. In a coffee mug melt about 1/2 cup of chocolate chips. Once melted and smooth spoon into a small sandwich baggie. Cut just the tip off of one corner and squeeze the chocolate down into that corner. This will now be your piping bag.

Step 4 – Draw a jack-o-lantern face on the orange surface of each treat. Start with two triangles for eyes and then draw a simple mouth. You can make it any shape you want. Just have fun with it and don’t worry about perfection!

For the stem place a drop of melted chocolate on top of the treat and press a mini Reese’s cup onto it.

Let the chocolate cool completely until it is firm then serve.

Other Fun Ideas

Halloween sprinkles

Simple, elegant, and fun, this version of the rice cereal treats gives them a Halloween theme with minimal work involved. And with all the different kinds of sprinkles you can find in the fall, there is practically no shortage of different decorations you can use. Coat your treat in melted chocolate and top with your favorite Halloween sprinkles for a super easy Halloween treat!

Coloring Rice Krispies Treats

If you don’t want to deal with lots of melted chocolate one of the easiest ways to decorate your rice cereal treats is with a few drops of food coloring. How much can vary based on the richness of the color you are going for, but we recommend starting around 5 drops for most colors. 

Lighter colors may need more while darker colors might be good with less. Some good Halloween colors include:

  • green
  • orange
  • black
  • purple

We use food coloring gel. You should also have no issue with traditional food coloring either. 

To use the coloring, melt your butter and marshmallows. Before adding the cereal, add the drops of food coloring and mix until the marshmallow mixture is a consistent color and the darkness you desire. 

If it is still light, add a drop or two more and stir. Keep adding a small amount at a time until you get the color you want.

This will cover the base color for your treats and then you can just use a small amount of melted chocolate for the details.

How to Make it Ahead of Time

Rice Krispies treats have a shelf life of about 3 to 5 days if you store them correctly. To store, all you need to do is place them in an airtight container and leave them on your counter. 

Don’t let them sit out or only loosely cover them! They will get hard within a day or so if you don’t put them in an airtight container!

Frankenstein Rice Krispies Treats decorated with colored candy melts

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Servings: 12
Prep Time: 5 mins
Cook Time: 10 mins
Total Time: 15 mins

Rice Krispies Treats

These easy Rice Krispies Treats are crunchy, soft, chewy, and totally delicious!

Ingredients

  • ½ cup Butter
  • 20 ounces Marshmallows
  • 7 cups Rice krispies

Instructions

  • Heat a large saucepan over medium low heat. Add butter and let it melt.
  • Grease a 13×9 inch pan with non-stick spray. Set aside.
  • Once the butter has melted add the marshmallows and stir them until they have fully melted. Approximately 5-7 minutes.
  • When the marshmallows have fully melted add the gel food coloring of your choice. I usually use about 5 drops depending on the color I am going for.
  • Add the Rice Krispies to the marshmallow mixture and stir together until the marshmallow coats everything.
  • Lightly coat your hands in a little bit of butter or non-stick spray and then, while the mixture is warm, pour it into the greased pan and use a spatula and your hands to press it down into the pan making a solid layer of rice krispie treats.
  • Let cool completely and then cut, serve, and decorate with your favorite Halloween decoration. See several Halloween Rice Krispies Treats decoration ideas in the post above.

Notes

The nutritional value does not include any decorations. 

Nutrition

Serving: 1bar, Calories: 280kcal, Carbohydrates: 52g, Protein: 2g, Fat: 8g, Saturated Fat: 5g, Polyunsaturated Fat: 1g, Monounsaturated Fat: 2g, Trans Fat: 1g, Cholesterol: 20mg, Sodium: 191mg, Potassium: 25mg, Fiber: 1g, Sugar: 29g, Vitamin A: 1323IU, Vitamin C: 10mg, Calcium: 5mg, Iron: 5mg
Nutrition Disclaimer: We are not certified nutritionists. Nutrition facts are an estimate and are provided as a courtesy. They are generated by an online API which recognizes ingredient names and amounts and makes calculations based on the serving size. Results may vary.
Author: Kat Jeter & Melinda Caldwell
Course: Dessert
Cuisine: American
Keyword: halloween rice krispies treats, rice krispies treats