From the ArcaMax Publishing, ArcaMax Chef Newsletter:
http://www.arcamax.com/news/arcamaxchef/s-345490-951351
1 cup butter, softened
1 and one half cups sugar
2 and one
half cups all-purpose flour
3 eggs
1 tsp. vanilla
One half tsp. salt
1 tsp. baking powder
1 Tbsp. orange
zest, grated
One third cup orange juice
One quarter cup
rum
Cream together butter and sugar. Add remaining ingredients and mix
well. Grease and flour a tube pan. Pour batter into pan and bake at
350 degrees for 45 - 50 minutes. If you don't want to use rum you may
increase orange juice to 1/2 cup and use 1 tsp. of rum extract.
The Skinny: Use your favorite sugar and egg substitutes.