Marbled Spice Cake

1/4 cup butter, softened
1 cup sugar
2 eggs
2 1/4 cups cake flour
2 1/2 tsp. baking powder
1/2 tsp. salt
1/4 cup milk
2 Tbs. light molasses
2 tsp. ground cinnamon
1/2 tsp. ground cloves
1/2 tsp. ground nutmeg
1/2 tsp. ground mace

Preheat oven to 350 °F. Grease and flour 9" loaf pan. 

In a large bowl, beat butter and sugar until fluffy, then beat in eggs.  Beat in one cup of flour, baking powder, and salt; beat in remaining flour, alternately with milk, and mix until smooth. Spoon 1/3rd of batter into small bowl; stir in molasses and spices until mixed well. 

Into loaf pan, spoon a half-inch layer of plain batter.  Spoon spiced batter and plain batter alternately into pan. With table knife, cut through batter to create a marble effect.

Bake 60-65 minutes.  Cool 10 minutes, then remove from pan and cool completely.