Ingredients
Method
- Preheat oven to 350°F (175°C) and grease a 9x9-inch baking pan.
- Mix melted butter, brown sugar, vanilla extract, and egg until smooth.
- Add flour, baking powder, salt, and baking soda and stir until just combined.
- Fold in chocolate chips evenly.
- Spread batter into pan and bake for 20-25 minutes until golden and set.
- Cool slightly, slice, and serve.
Notes
Underbake slightly for extra chewiness. Add walnuts or pecans for a crunchy variation.