1 1/2 cups packed brown sugar
2 tablespoons butter
3 cups all-purpose flour
1 teaspoon baking powder
1 teaspoon baking soda
1/4 teaspoon salt
1 egg, beaten
1 cup white sugar
1 teaspoon vanilla extract
Preheat the oven to 350 degrees F (175 degrees C). Grease cookie sheets.
In a large bowl, cream together brown sugar, butter, flour, baking powder, baking soda, salt. Beat in egg. Mix in sugar, vanilla and flour mixture until well blended. Drop by rounded spoonfuls onto the prepared cookie sheets.
Bake for 8 to 10 minutes in the preheated oven. Allow cookies to cool on baking sheet for 5 minutes before removing to a wire rack to cool completely.