Deselect All

1 1/4 cups all-purpose flour (see Cook's Note)

1/2 cup unsweetened cocoa powder

1/2 teaspoon baking powder

1/2 teaspoon baking soda

1/2 teaspoon fine salt

1 cup bittersweet chocolate chips

3/4 cup milk

1/2 cup packed light brown sugar

4 tablespoons unsalted butter, melted

1 tablespoon vegetable oil

2 teaspoons pure vanilla extract

2 large eggs