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No Bake Cornflake Cookies

These no bake cornflake cookies are a nostalgic treat made by melting marshmallows and butter, then folding in crunchy cornflakes for a sweet, sticky snack. They come together quickly without the need for an oven, resulting in a chewy exterior with a crisp bite. Perfect for a comforting, mess-free dessert that captures childhood memories.
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Prep Time 10 minutes
Cook Time 5 minutes
Total Time 15 minutes
Servings: 12
Course: Main Course
Cuisine: American
Calories: 120
Ingredients Equipment Method Notes

Ingredients
  

  • 4 cups cornflakes classic crunchy cornflakes
  • 10 oz marshmallows mini marshmallows melt quickly and smoothly
  • 3 tablespoons butter adds richness and helps marshmallows melt smoothly
  • 1 teaspoon vanilla extract brightens the sweet flavor
  • optional add-ins (nuts, dried fruit, chocolate chips) for variation, optional

Equipment

  • Large mixing bowl
  • Saucepan
  • Wooden spoon
  • Parchment paper-lined baking sheet
  • Measuring cups and spoons
  • Spray bottle of cooking spray

Method
 

  1. Gather your equipment: a large mixing bowl, a saucepan, a wooden spoon, and a parchment-lined baking sheet. Measure out your cornflakes and set aside.
  2. In the saucepan, melt the butter over medium heat, listening for a gentle crackle and smelling the rich aroma—that’s when it’s just right.
  3. Add the marshmallows to the melted butter, stirring constantly until they are fully melted and the mixture is glossy and smooth, about 2-3 minutes.
  4. Remove the saucepan from heat, then stir in the vanilla extract to brighten the flavor. If desired, add any optional mix-ins now.
  5. Pour the melted marshmallow mixture over the cornflakes in the large bowl. Gently fold everything together with the wooden spoon until the flakes are evenly coated, being careful not to crush them.
  6. Using a spoon or lightly sprayed hands, scoop portions of the mixture and shape into mounds or press into a pan to make bars. Place them on your prepared parchment-lined sheet.
  7. Let the cookies sit at room temperature for about 30 minutes until they firm up and develop their chewy-crunchy texture.
  8. Once set, peel the cookies from the parchment paper and enjoy! Store any leftovers in an airtight container at room temperature for up to 3 days.

Notes

For extra flavor, toss in nuts or dried fruit before shaping. Use fresh marshmallows for maximum gooeyness. Keep cookies in a cool, dry place for best texture.