In large bowl, beat butter and sugar with electric mixer until light and fluffy. Add egg, milk, 1 tsp Crisp Champagne and 1/2 tsp Creamy Vanilla Custard Flavors; mix well. Combine flour, baking powder and salt; gradually add to butter mixture, mixing to make a smooth dough. Do not chill. Place dough into cookie press and press cookies onto ungreased cookie sheet.