1/2 cup browned butter, cooled (1 stick)
1 cup dark brown sugar
1 tbsp vanilla
2 1/4 cups flour
1 1/2 tsp baking soda
1/2 tsp baking powder
1/2 tsp salt
1 cup butterscotch chips
1/2 cup chocolate chips (optional)
Combine butter, sugar, vanilla and eggs until well mixed. Add dry ingredients, mix until just combined. Fold in chips. Chill dough for at least 1 hour.
Once dough has rested and chilled, drop by rounded tablespoonfuls onto a parchment lined baking sheet and bake for 8-11 minutes, or until light golden brown.