INGREDIENTS:
- 12 tablespoons butter (1 1/2 sticks), melted and cooled slightly
- 1/2 teaspoon salt
- 1/2 teaspoon baking soda
- 1 cup (7 ounces) light brown sugar
- 1/2 cup (3 1/2 ounces) granulated sugar
- 1 large egg
- 1 large egg yolk
- 2 teaspoons vanilla extract
- 2 cups + 2 tablespoons (10 1/2 ounces) all purpose flour
- 2 cups chocolate chips or chocolate chunks (any kind-- 1 1/2 cups semisweet and 1/2 cup butterscotch is our favorite)
DIRECTIONS:
- Preheat the oven to 325 degrees. Adjust the oven rack to lower-middle position.
- Line a 9X13-inch baking pan with foil, letting the excess hang over the edges of the pan by about 1 inch so you can grab those edges and pull the brownies from the pan after they have baked. Spray the foil-lined pan with nonstick cooking spray.
- In a large bowl, whisk together the melted butter, salt and baking soda together until well combined.
- Add the brown sugar and granulated sugar and whisk well.
- Add the egg, egg yolk, and vanilla and mix well.
- Add the flour. Using a large wooden spoon start folding the flour into the wet ingredients.
- After a few stirs (with streaks of flour remaining), add the chocolate chips and mix until just combined--until no dry streaks remain. Take care not to overmix. The dough can get really thick, so sometimes it's easier to finish mixing by hand.
- Press the batter evenly into the prepared pan, spreading into all the corners
- Bake until the bars are light golden brown on the edges, slightly firm to the touch, and edges start pulling away from sides of pan, 24-28 minutes.
- Cool on a wire rack to room temperature. Remove the bars from the pan by lifting the foil overhang and transfer them to a cutting board. Cut into squares and serve.