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Colorful Rice Krispie treats decorated as Halloween monsters with candy eyes, icing in orange, white, purple, green, and black, and various spooky designs. Bowls of marshmallows, candy corn, and more treats are in the background.

Easy Halloween Rice Krispie Treats

Sarah Allison
One pan of Halloween Rice Krispie treats, four spooky designs: mummies, Frankensteins, spiders, and monster eyes. No oven, 16 squares, and easy enough for kids to decorate their own.
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Prep Time 30 minutes
Total Time 30 minutes
Course Dessert
Cuisine American
Servings 16

Ingredients
 

  • 1 batch Rice Krispie Treats cut into 16 squares
  • 2 cups white candy melts melted, divided
  • ½ cup green candy melts melted
  • ½ cup black candy melts melted or black icing
  • ½ cup orange candy melts melted, or white candy melts + orange gel food coloring
  • ½ cup purple candy melts melted, or white candy melts + purple gel food coloring
  • Candy eyeballs about 40 total, mix sizes
  • 4 mini Oreo cookie halves use one wafer per spider
  • Black jimmies optional

Instructions
 

  • Cut Rice Krispie Treats into 16 squares. Place on parchment-lined tray.
  • Melt the candy melts: Work on one design at a time, since each only needs 1–2 colors. Place wafers in a microwave-safe bowl and heat in 20–30 second bursts, stirring between each, until smooth. If the melts seize or thicken, stir in about 1 teaspoon of coconut oil per cup of wafers to thin them back out.
  • Mummies (4): Spread melted white candy melts across the top of each Rice Krispies treat. Transfer some into a piping bag fitted with a Wilton #3 tip (or a zip-top bag with a tiny corner snipped). Pipe thin, uneven lines across each square to create bandages. Add 2 candy eyeballs before the melts set.
  • Frankensteins (4): Spread melted green candy melts to cover the top of each Rice Krispies Treat. Transfer black melts into a piping bag with a Wilton #3 tip (or a zip-top bag with tiny corner snipped). Pipe jagged lines for hair. Add black jimmies for texture, if using. Press on candy eyeballs and draw a stitched smile with black icing or black melts
  • Spiders (4): Spread melted white candy melts over the top of each Rice Krispies treat. Transfer melted black melts to a piping bag fitted with a Wilton #3 tip (or a zip-top bag with a tiny corner snipped). Pipe 3–4 straight lines down the treat. Connect with slightly curved lines between each section to form a web. Press on a mini Oreo wafer half, attach eyes with a dab of melts, then pipe 2-3 legs on each side extending onto the square.
  • Monster Eyes (4): Spread melted orange or purple candy melts (or tinted white melts) across the top of each Rice Krispies treat. Add assorted eyeball candy.

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Notes

Scaling: Decorate 4 squares of each design. To make all 16 in one style, multiply that design's toppings by 4.
Make ahead: Decorate the squares a day in advance, then cover and store until serving.
Storage: Airtight at room temperature for up to 2 days, with parchment between layers to prevent sticking. They're safe past that; they just start drying out.
Freezing: Layer with wax paper in an airtight container and freeze for up to 6 weeks. Let them sit at room temperature for 15 minutes before serving.
Working with candy melts: Melt in short bursts, stirring between each. If they thicken, a small spoonful of coconut oil loosens them- the same trick I use on my Halloween pretzel rods. White or semisweet chocolate works in their place but sets softer.
The shortcut: Store-bought Rice Krispies Treats squares decorate just as well. Skip the base recipe and start at the designs.
Set: Let the candy melts firm up at room temperature before stacking or packing.

The provided nutritional information is an estimate per serving. Accuracy is not guaranteed.

Did you make this Recipe? Leave a comment & recipe rating below. Tag @thesassandsalt on Instagram so we can admire your masterpiece!
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