# Needed Ingredients:
→ Brownie Layer
01 - 1/2 cup unsalted butter, melted
02 - 1 cup granulated sugar
03 - 2 large eggs
04 - 1 teaspoon vanilla extract
05 - 1/2 cup all-purpose flour
06 - 1/2 cup unsweetened cocoa powder
07 - 1/4 teaspoon salt
08 - 2/3 cup dark chocolate chips
→ Blondie Layer
09 - 1/2 cup unsalted butter, melted
10 - 1 cup light brown sugar, packed
11 - 1 large egg
12 - 1 teaspoon vanilla extract
13 - 1 cup all-purpose flour
14 - 1/4 teaspoon salt
15 - 1/2 cup white chocolate chips
16 - 1/3 cup chopped pecans (optional)
# Preparation Steps:
01 - Preheat the oven to 350°F. Line two 8-inch square baking pans with parchment paper, leaving an overhang for easy removal.
02 - In a medium bowl, whisk together melted butter and granulated sugar until smooth. Add eggs and vanilla extract, mixing well. Sift in flour, cocoa powder, and salt, stirring until just combined. Fold in dark chocolate chips.
03 - In a separate bowl, combine melted butter and packed brown sugar, whisking until creamy. Add egg and vanilla extract, mixing until smooth. Fold in flour and salt until just incorporated. Stir in white chocolate chips and pecans if using.
04 - Divide each batter evenly into the prepared pans and smooth the surfaces with a spatula.
05 - Bake both pans for 30 to 35 minutes, or until a toothpick inserted into the center comes out with a few moist crumbs.
06 - Allow the baked bars to cool completely in the pans placed on a wire rack. Use the parchment overhang to lift them out. Cut each slab into 12 squares.
07 - Arrange the brownie and blondie squares together on a serving platter and serve.
