Polish Sweet Bread

My Grandmother's bread. I grew up with this and think it is pure heaven.

2 cups of sugar
1/2 cups of butter
2 cups of buttermilk
1 tsp baking soda
2 eggs
4 cups of flour
1 tsp of salt
2 tsp of baking powder
raisins are optional (I don't add them)

Topping:
1/2 cup of butter
1 1/4 cup of flour
1/2 sugar
mix in a small bowl

In a large bowl cream sugar eggs and butter. In another bowl flour salt baking soda and baking powder.
Combine egg mixture with flour mixture plus buttermilk.
Add Raisins last (ewww.)
Pour into 2 well greased loaf pans and sprinkle topping on batter

Bake in a 350 degree oven for 45-50 minutes or until toothpick comes out clean.