Chocolate Chip-Pretzel Bars

2 cups all-purpose flour
1 tsp. baking soda
1/2 tsp. salt
1 1/2 sticks unsalted butter, softened
1 cup light brown sugar
1/2 cup sugar
2 large eggs
2 tsp. vanilla extract
One 12-ounce bag bittersweet chocolate chips (I used semi-sweet)
1 1/2 cups mini pretzels, coarsely chopped

Preheat the oven to 350°. Spray a 9-by-13-inch pan with cooking spray.

In a bowl, whisk the flour, baking soda and salt. Using a mixer, beat the butter with both sugars at medium speed until light, about 1 minute. Beat in the eggs and vanilla extract. On low, beat in the dry ingredients, just until incorporated. Stir in the chocolate chips and pretzel pieces.

Spread the batter evenly in the pan. Press the batter down with a spatula. Bake for 25-30 minutes, until golden brown. Transfer the pan to a rack and let cool completely. Cut the bars into squares and serve.