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Giant Messy Rice Krispie Treats

These oversized rice krispie treats are a playful, gooey creation made by melting marshmallows and butter, then mixing in crunchy rice cereal and fun extras. They come together quickly with a sticky, crispy texture and a delightfully chaotic appearance, perfect for sharing or indulging in alone. The final treats are large, uneven bars with a caramelized, crispy edge and a soft, chewy center.
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Prep Time 10 minutes
Cook Time 10 minutes
Total Time 20 minutes
Servings: 8
Course: Main Course
Cuisine: Comfort Food
Calories: 250
Ingredients Equipment Method Notes

Ingredients
  

  • 4 cups marshmallows mini or regular, depending on preference
  • 1/2 cup unsalted butter or salted, as preferred
  • 6 cups rice Krispies cereal traditional or multigrain
  • 1 teaspoon vanilla extract optional but adds aroma
  • 1/2 cup chocolate chips optional, for added sweetness
  • as desired sprinkles or crushed cookies optional extras for personality

Equipment

  • Large saucepan
  • Rubber spatula
  • 9x13-inch pan
  • Measuring cups & spoons
  • Parchment paper or greased foil

Method
 

  1. Grease your 9x13-inch pan generously or line it with parchment paper for easy removal.
  2. In a large saucepan, melt the butter over low heat until it’s fully melted and fragrant, about 2-3 minutes, with a gentle bubbling sound.
  3. Add the marshmallows to the melted butter and stir constantly with a spatula until they’re completely melted, glossy, and smooth, about 5 minutes. The mixture should be thick and bubbly.
  4. Remove the saucepan from heat and stir in the vanilla extract if using, giving it a quick swirl to distribute the aroma.
  5. Immediately fold in the rice Krispies cereal and any extras like chocolate chips or sprinkles with your spatula, stirring swiftly until everything is well coated and sticky.
  6. Pour the gooey mixture into the prepared pan, using your spatula to press it down and spread it evenly, but don’t worry if the surface is uneven—this adds to the chaotic charm.
  7. Let the treats sit at room temperature for 15-20 minutes until they’re set and firm enough to cut. The edges may crack slightly, which is perfect.
  8. Using a sharp knife, cut into large, irregular pieces or bars, reveling in their imperfect, wild shapes.
  9. Enjoy immediately for maximum gooeyness or store in an airtight container for up to 2 days—if they last that long!

Notes

Feel free to customize your treats with your favorite extras—more sprinkles, chocolate chunks, or even a drizzle of caramel for extra decadence.