In large bowl, beat 1/2 cup browned butter, granulated sugar and brown sugar with electric mixer until smooth and creamy. Add eggs, one at a time, mixing well after each. Add 1/4 teaspoon Juicy Peach and 6 drops Creamy Vanilla Custard Flavors and beat well. Alternately add dry ingredients with sour cream and milk, scraping bottom and sides of bowl often. Divide batter evenly into baking cups, about 2/3 full.