Combine softened cream cheese, margarine, sugar and vanilla, mixing until well blended. Add eggs one at a time, mixing at low speed until well blended. Add lime rind. Gradually add flour and baking powder combined, mixing at a low speed until well blended. Spread batter in a greased and floured 9" tube or bundt pan. Bake at 325 for about 70 minutes or until cake tests done. Cool 10 minutes; remove from pan. Sift icing sugar over cake when cool.

Key Lime Daiquiri Pound Cake

1 cup butter
1/2 cup shortening
2 cups white sugar
5 eggs
3 cups all-purpose flour
1/2 tsp baking powder
1 cup milk
2 tsp rum
1 tbsp grated key lime zest
2 tspkey lime juice
1 1/2 tsp vanilla extract
1/2 tsp lemon juice

1/4 cup white sugar
1/4 cup butter
2 tbsp key lime juice
3 tbsp rum

Directions
Preheat oven to 325 Grease
and flour a 10 inch tube pan. Mix together the flour and baking powder.
In a large bowl, cream together 1 cup butter, 1/2
cup shortening and 2 cups sugar until light and fluffy. Beat in the
eggs one at a time. Beat in the flour mixture alternately with the milk mixing just until
incorporated. Stir in 2
tablespoons rum, key lime zest, 2 teaspoons key lime juice,vanilla extract and lemon juice
Pour batter into prepared pan. Bake in a preheated oven for 90 minutes.Allow to cool in pan
10 minutes.
Turn it out onto wire rack. While warm, prick top of cake with toothpick pour key lime glaze over
warm cake. Cool completely.