ABSOLUTE BLONDIES WITH CHOCOLATE CHIPS

INGREDIENTS:
1 cup (2 sticks) unsalted butter, melted
2/3 cup white granulated sugar
1 cup light brown sugar, packed
2 large eggs, room temp.
2 tsp vanilla extract
2 cups all-purpose flour
2 tsp salt
2 cups semisweet chocolate chips
DIRECTIONS:
1. Preheat oven to 350 degrees F. Line 9×13 pan with parchment paper. I spray with cooking spray first to help the parchment stick. Then proceed with two folded pieces of parchment that overextend past the edges of the pan (one lengthwise and one across the width, making a criss-cross). See picture below. I do not add any extra cooking spray or butter. The parchment alone will prevent sticking.
2. In a large bowl, whisk butter and sugars until smooth. Whisk in egg and vanilla …