Ingredients

1-1/3 cups butter, softened1 cup packed brown sugar4 large egg yolks, room temperature2 tablespoons eggnog1/2 teaspoon rum extract3 cups all-purpose flourEGGNOG FROSTING:4-1/2 cups confectioners’ sugar3/4 cup butter, softened1-1/2 teaspoons rum extract1/2 teaspoon ground nutmeg1/4 teaspoon ground cinnamon2 to 3 tablespoons eggnogAdditional ground nutmeg

Preparation

In a large bowl, cream butter and brown sugar until light and fluffy. Beat in egg yolks, eggnog and extract. Gradually beat in flour. Refrigerate, covered, for at least 2 hours.

Shape into 1-in. balls; place 2 in. apart on ungreased baking sheets. Bake at 325° until bottoms are brown, 13-16 minutes. Remove to wire racks to cool completely.

In a large bowl, beat the first five frosting ingredients until blended; beat in enough eggnog to reach desired consistency. Spread over cookies; sprinkle with additional nutmeg. Let stand until set. Store in airtight containers.