This glaze and streusel is a great glaze over a cake or doughnuts. You can glaze, sprinkle streusel and then drizzle some some glaze over it.
2 cup confectioners' sugar
½ tsp vanilla sugar
2 Tbsp oil
2 Tbsp boiling water
½ tsp coffee (dissolved in a bit of water)
⅔ cup flour
4 Tbsp brown sugar
4 Tbsp margarine
Mix the glaze ingredients together.
Mix the streusel recipe together to form crumbs.