Grandma’s Sweet Foundation Dough recipe didn’t come to me with good directions on fillings or toppings. So for several years, I’ve experimented with different fillings and icings. I have finally found the "winning" recipes in cookbooks I have had for many years.
Filling:
1/4 cup butter or margarine, softened
1/4 cup sugar
1/4 packed brown sugar
2 Tbl cinnamon
1 Tbl light corn syrup
In order to use this filling for the entire sweet dough recipe, I quadruple the ingredients.
Frosting:
2 oz softened cream cheese
2 Tbl softened butter
1/2 tsp vanilla
1-1/3 cup powdered sugar
1 Tbl milk
Double, triple, quadruple, as necessary 
I also like making my own sticky rolls or caramel rolls….
Glaze for sticky rolls:
Mix together in bottom of round baking pan:
1/4 cup packed brown sugar
1 Tbl melted butter
1 Tbl corn syrup
Sprinkle with 1/4 to 1/2 cup chopped walnuts or pecans
Place shaped rolls on top and continue as usual