🔪 Instructions

1. Preheat oven to 350°F (175°C). Grease a 9×9-inch baking pan with nonstick spray.
2. In a medium bowl, mix together the butter, brown sugar, egg, and vanilla until smooth.
3. Stir in flour, baking powder, salt, and baking soda until fully combined.
4. Fold in the chocolate chips.
5. Spread the batter evenly into the prepared pan.
6. Bake for 20–25 minutes, or until the top is golden and the center is just set.
7. Cool slightly, slice, and enjoy warm—or let cool completely for clean-cut bars!