Peach Cookies Ingredients 1 1/2 cups all-purpose flour 1 3/4 tsp baking powder 1/4 tsp salt 10 1/2 Tbsp butter, softened 1/3 cup granulated sugar 1/4 cup packed light-brown sugar 1 large egg 2 Tbsp sour cream 3/4 tsp vanilla extract Filling and Coating: peach jam or preserves 6 Tbsp milk, divided red and yellow