# What You'll Need:
→ 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 packed light brown sugar
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)
# Steps to Follow:
01 - Preheat the oven to 350°F. Line two 8-inch square baking pans with parchment paper, allowing some overhang for easy removal.
02 - In a medium bowl, whisk 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, whisk melted butter and brown sugar until creamy. Add egg and vanilla extract, mixing thoroughly. Fold in flour and salt until just incorporated. Stir in white chocolate chips and pecans if using.
04 - Divide each batter into their respective prepared pans, smoothing the tops evenly with a spatula.
05 - Bake both pans for 30 to 35 minutes or until a toothpick inserted in the center comes out with a few moist crumbs.
06 - Allow the baked layers to cool completely in the pans on a wire rack. Lift out using the parchment overhang and cut each slab into 12 squares.
07 - Arrange the brownie and blondie squares together on a serving platter and offer as desired.