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Irresistible Mint Chocolate Chip Marshmallow Squares

mint chocolate chip marshmallow squares - featured image

These Mint Chocolate Chip Marshmallow Squares are a quick and easy treat combining gooey toasted marshmallows with refreshing mint chocolate chips for a nostalgic, crowd-pleasing dessert.

Ingredients

Scale
  • 1/2 cup (113g) unsalted butter, melted
  • 1 cup (200g) granulated sugar
  • 1/2 cup (110g) light brown sugar, packed
  • 2 large eggs, room temperature
  • 1 teaspoon pure vanilla extract
  • 1 3/4 cups (220g) all-purpose flour (or gluten-free flour blend)
  • 1 teaspoon baking powder
  • 1/2 teaspoon salt
  • 1 cup (175g) mini mint chocolate chips
  • 3 cups (about 150g) mini marshmallows

Instructions

  1. Preheat your oven to 350°F (175°C). Lightly grease a 9×13-inch baking pan or line it with parchment paper, letting some overhang for easy removal.
  2. In a large bowl, whisk together the melted unsalted butter, granulated sugar, and light brown sugar until smooth and slightly glossy.
  3. Crack in the eggs one at a time, mixing well after each addition. Stir in the pure vanilla extract until the batter is smooth and creamy.
  4. In a separate bowl, sift together the all-purpose flour, baking powder, and salt.
  5. Gradually fold the flour mixture into the wet ingredients with a spatula until just combined. Avoid overmixing.
  6. Fold in the mini mint chocolate chips evenly throughout the batter, reserving a handful for topping.
  7. Pour the batter into the prepared pan and spread evenly with a spatula.
  8. Evenly scatter the mini marshmallows across the batter, pressing lightly so they stick. Sprinkle the reserved chocolate chips over the marshmallows.
  9. Bake for 20-25 minutes until edges are golden brown and marshmallows are toasted to a light golden color. Watch closely from minute 20 to avoid burning.
  10. Cool completely in the pan for at least 30 minutes to set.
  11. Lift the batch out using the parchment overhang and cut into squares. Serve immediately or store for later.

Notes

Do not overmix the batter to keep squares tender. Use room temperature eggs for better texture. Toast marshmallows carefully to avoid burning; broil for 20-30 seconds if needed but watch closely. Cool completely before slicing for clean cuts. Store leftovers wrapped tightly to keep marshmallows soft. Can be frozen for up to 3 months.

Nutrition

Keywords: mint chocolate chip, marshmallow squares, easy dessert, quick treat, mint chocolate dessert, holiday treats, kid-friendly dessert