1/2 cup salted butter, softened
3/4 cup dark brown sugar
1/2 cup granulated sugar
1 tsp baking powder
2 tsp vanilla
Preheat oven to 350 degrees and position the oven rack to one level above the middle of the oven. Line baking sheets with parchment paper.
Scoop out about one tablespoon of dough, roll into a ball and place on the prepared baking sheet. Slightly flatten (using fingers is fine). Repeat with remaining dough.