
Preheat oven to 325 F.
In a large bowl, combine the flour, baking powder, and salt. Set aside.
Grease and flour a bundt or tube pan.
In a separate large mixing bowl combine the butter and shortening on medium speed until nice and creamy.
Slow staring adding in the sugar.
Add each egg, one at a time.
Add flour mixture to butter mixture alternating with the half & half.
Reduce the mixers speed from medium to low
Stir in vanilla extract, lime zest, and lime juice.
Pour the batter into prepared pan.
Make sure the batter is even in the pan.
Bake for 1 hour 30 minutes, or until done
Cool cake in pan on a wire rack 25 to 30 minutes before removing from the pan
Combine the ingredients for the icing.
When the cake is at room temperature, ice the cake.
Serve & enjoy.