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Monster Rice Krispie Treats

Monster Rice Krispie Treats are a playful and chaotic dessert combining melted marshmallows, butter, and crispy rice cereal into a sticky, crunchy snack. The mixture is stirred until gooey and coated, then pressed into a pan to set into imperfectly perfect squares with crispy edges and chewy centers. These treats are messy, fun, and irresistibly addictive.
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Prep Time 10 minutes
Cook Time 10 minutes
Total Time 20 minutes
Servings: 12
Course: Main Course
Cuisine: American
Calories: 150
Ingredients Equipment Method Notes

Ingredients
  

  • 1/2 cup unsalted butter or salted, if preferred
  • 4 cups mini marshmallows
  • 6 cups crispy rice cereal fresh for maximum crunch
  • 1/2 cup chocolate chips optional, for melty sweetness
  • 1 teaspoon vanilla extract optional, boosts sweetness
  • Sprinkles or candies optional decorations for visual chaos

Equipment

  • Large mixing bowl
  • Medium saucepan
  • Spatula
  • 9x13 inch pan
  • Parchment paper

Method
 

  1. Line your 9x13 inch pan with parchment paper to prevent sticking and make cleanup easier.
  2. Melt the butter in a medium saucepan over medium heat, listening for a gentle bubbling and smelling nutty as it turns golden, about 3-5 minutes.
  3. Add the mini marshmallows to the melted butter and stir continuously with a spatula until they are shiny, gooey, and just melted, about 3 minutes. The mixture should be smooth and bubbling softly.
  4. Remove the saucepan from heat and quickly pour in the vanilla extract and, if using, the chocolate chips. Stir until the chocolate melts into the marshmallow mixture, creating a glossy, sticky goo.
  5. Pour the crispy rice cereal into the marshmallow mixture and fold gently with a spatula until every puff is coated in the gooey mixture. Be careful not to crush the cereal—just fold until uniform.
  6. Transfer the mixture into your prepared pan and press it evenly with the back of a spatula or your hands (using parchment to avoid sticking). Don’t press too hard—just enough to compact the treats into an even layer.
  7. If desired, sprinkle colorful candies or sprinkles on top and press lightly to embed them into the surface for a chaotic, decorative effect.
  8. Let the treats cool at room temperature for at least 30 minutes until they set and firm up. You’ll hear a satisfying crack when you press on the edges.
  9. Once cooled, lift the treats out of the pan using the parchment paper and cut into squares or irregular shapes for that rebellious chaos look.
  10. Serve immediately or store in an airtight container for up to 3 days, enjoying the sticky, crispy texture and sweet, gooey flavor with every bite.

Notes

Feel free to customize with your favorite candies or add extra chocolate for more chaos. For even more gooeyness, add a few more marshmallows or melt some chocolate and drizzle on top after setting.