For coffee cake, in theory.
From a box sold in Brookfield, Wisconsin.
Streusel Filling
1/2 cup brown sugar
2 Tbsp. flour
2 tsp. cinnamon
2 Tbsp. butter (melted)
1/2 cup nuts (chopped)
Mix sugar, flour and cinnamon together. Then blend in the melted butter and stir in the nuts. Mix well and use as described above.