Sarah marie on Instagram: "Oatmeal cream pie cookies! Welcome to episode 21 of my Christmas cookie series! Ingredients: 1 cup unsalted butter browned ⅔ cup granulated sugar ⅔ cup packed dark brown sugar 2 tsp molasses 2 large eggs 2 tsp vanilla extract 2 cups all-purpose flour 2 cups old-fashioned oats 2 tsp salt 1 tsp baking soda 2 tsp ground cinnamon ¼ tsp ground cloves ¼ tsp ground ginger ¼ tsp ground nutmeg Filling: 1 cup unsalted butter (2 sticks) softened 3 cups powdered sugar 1 tsp vanill