Preheat oven to 350 °F. Line an 8″ spring-form pan with parchment or butter and flour a Bundt pan. Cream butter and sugar together until light and fluffy. Add almond paste. Add eggs and beat. Add baking powder, salt, almond extract and liquor; stir to combine. Gently fold in flour and do not over-mix. Pour into prepared pan. Bake until golden brown (35-45 minutes for spring-form pan or 55-60 minutes for Bundt pan). Serves 8-12.