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Decadent Fudge-Filled Chocolate Cookie Squares

These chocolate cookie squares feature a rich fudge filling, combining crisp edges with a velvety center, perfect for weeknight indulgence or impressing guests.
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Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings: 16 squares
Course: Dessert, Snack
Cuisine: American
Calories: 230
Ingredients Method Notes

Ingredients
  

For the cookie base
  • 1 cup unsalted butter, melted Melt gently and let cool slightly.
  • 1 cup granulated sugar
  • 1 cup packed brown sugar
  • 2 large eggs
  • 2 teaspoons vanilla extract
  • 2 1/2 cups all-purpose flour
  • 1/2 cup unsweetened cocoa powder Use high-quality cocoa for best flavor.
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 1/2 cups semi-sweet chocolate chips Plus an additional 1/2 cup for the fudge layer.
For the fudge filling
  • 1 can sweetened condensed milk (14 oz) Melt with chocolate chips for the fudge layer.
  • 1/2 cup semi-sweet chocolate chips Used for the fudge filling.

Method
 

Preparation
  1. Preheat oven to 350°F (175°C) and prepare a 9x13-inch baking dish with parchment paper.
  2. In a bowl, whisk together melted butter, granulated sugar, and brown sugar. Add eggs and vanilla, mixing well.
  3. In another bowl, sift together flour, cocoa powder, baking soda, and salt. Mix dry ingredients into wet until a soft dough forms. Fold in chocolate chips.
Assembly
  1. Divide dough in half; press one half into the baking dish.
  2. In a saucepan, melt sweetened condensed milk and half a cup of chocolate chips for the fudge layer, stirring until smooth. Pour over the dough.
  3. Crumble the remaining dough over the fudge and press down gently.
Baking
  1. Bake for 25-30 minutes until set. Cool completely before slicing into 16 squares.

Notes

Serve slightly chilled for a denser bite, or at room temperature for a softer center. A light dusting of cocoa or a few flakes of sea salt can enhance the flavor.