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Mint Chocolate Chip Fudge Squares Layered with Cookie Dough and Brownie Crust

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Mint Chocolate Chip Fudge Squares are a triple-layered dessert bar with a fudgy brownie base, a chewy chocolate chip cookie dough middle, and a creamy mint chocolate chip fudge top. These rich, indulgent squares are a festive and crowd-pleasing treat perfect for the holidays.

Ingredients

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  • 1 box brownie mix (plus ingredients listed on the box: eggs, oil, water)
  • 1/2 cup unsalted butter, softened
  • 1/2 cup brown sugar, packed
  • 1/4 cup granulated sugar
  • 1 large egg
  • 1 tsp vanilla extract
  • 1 cup all-purpose flour
  • 1/4 tsp salt
  • 1 cup mini chocolate chips, divided
  • 2 cups white chocolate chips
  • 1 (14 oz) can sweetened condensed milk
  • 1/2 tsp peppermint extract
  • Green food coloring (optional)

Instructions

  1. Preheat oven to 350°F (175°C). Line a 9×13-inch baking pan with parchment paper, leaving overhang for easy removal.
  2. Prepare brownie mix according to package instructions. Spread into the bottom of the pan and bake for 20 minutes. Let cool slightly.
  3. In a separate bowl, cream together butter, brown sugar, and granulated sugar until light and fluffy.
  4. Add egg and vanilla extract, mix until well combined.
  5. Stir in flour and salt until dough forms. Fold in 1/2 cup mini chocolate chips.
  6. Gently press cookie dough layer over the slightly cooled brownie base.
  7. In a saucepan over low heat, melt white chocolate chips with sweetened condensed milk, stirring until smooth.
  8. Remove from heat, stir in peppermint extract and green food coloring (if using), then fold in remaining 1/2 cup mini chocolate chips.
  9. Spread fudge layer evenly over the cookie dough. Refrigerate for at least 2 hours until fully set.
  10. Lift out of the pan, slice into squares, and serve chilled or at room temperature.

Notes

  • Cool brownie base slightly before adding cookie dough to prevent melting.
  • Chill well before slicing for clean cuts.
  • Store in the refrigerator in an airtight container for up to 5 days or freeze for longer storage.

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