Key Lime Pound Cake
1 cup butter, softened
1/2 cup shortening
3 cups sugar
6 large eggs
3 cups all-purpose flour
1/2 tsp. baking powder
1/8 tsp. salt
1 cup milk
1 tsp. vanilla extract
1 tsp. lime zest
1/4 cup fresh Key lime juice
Preheat oven to 325 degrees. Beat butter and shortening at medium speed until creamy. Gradually add sugar, beating at medium speed until light and fluffy. Add eggs, one at a time, beating just until blended after each addition.
Stir together flour, baking powder, and salt. Add to butter mixture alternately with milk, beginning and ending with flour mixture. Beat at low speed just until blended after each addition. Stir in vanilla, lime zest, and lime juice. Pour batter into a greased and floured 10-inch (12-cup) tube pan.
Bake at 325 for 1 hour and 15 minutes to 1 hour and 20 minutes or until a long wooden pick inserted in the center comes out clean. Cool in pan on a wire rack 10-15 minutes; remove from pan to wire rack.
(See http://www.wellseasonedlife.com/2011/03/key-lime-pound-cake.html for more details.)
