Step 1: Preheat the Oven - Begin by preheating your oven to 350°F (175°C). This will ensure that your cookie bars bake evenly.
Step 2: Prepare the Baking Pan - Line an 8x8-inch baking pan with parchment paper, leaving some overhang on the sides.
Step 3: Cream the Butter and Sugar - In a mixing bowl, use a whisk to cream together the unsalted butter and granulated sugar until light and fluffy, about 2-3 minutes.
Step 4: Add Egg and Extracts - Beat in the large egg, then add the vanilla and almond extracts, mixing until well incorporated.
Step 5: Combine Dry Ingredients - In a separate bowl, whisk together the all-purpose flour and kosher salt. Gradually add to the wet mixture, stirring gently until just combined.
Step 6: Fold in Chocolate Chips - Gently fold in the mini semisweet chocolate chips, reserving a few for topping.
Step 7: Transfer to Baking Pan - Spread the cookie dough evenly into the prepared baking pan, smoothing the top and sprinkling additional chocolate chips for topping.
Step 8: Bake - Bake for 20-25 minutes, or until the edges are lightly golden and a toothpick inserted comes out clean.
Step 9: Cool and Slice - Allow to cool completely in the pan, then lift out using parchment paper and slice into squares.