Cooking Spray

1 1/2 cups all-purpose flour

3/4 teaspoon baking powder

1/2 teaspoon kosher salt

one stick (1/2 cup) butter, softened

3/4 cup butterscotch chips

3/4 cup lightly packed light brown sugar

one extra large egg

1/2 teaspoon pure vanilla extract

1/4 cup bourbon

1. Preheat the oven to 350 degrees and spray a 9-inch square baking pan with cooking spray or butter it generously. For ease, I recommend lining the pan with parchment paper and spraying that too.
2. In a medium bowl, whisk the flour, baking power and salt.
3. In a small saucepan over medium heat melt the butter and ¼ cup of butterscotch chips until the mixture is smooth. Transfer it to the bowl of a standard mixer.
4. Beat the brown sugar into the butter mixture, than the eggs. Add the vanilla and bourbon and beat until combined. Add the flour mixture and beat until incorporated. Stir in the remaining ½ cup butterscotch chips.
5. Spread the batter into the prepared pan and bake for 20 to 25 minutes, or until a toothpick inserted into the center comes out with not too much stuck to it. Let cool before cutting