Cinnamon Streusel - cooking recipe

Ingredients

1 cup all-purpose flour
1/2 cup brown sugar, packed
1/2 cup unsalted butter
1 teaspoon ground cinnamon

Preparation

Combine all the ingredients in a food processor and pulse until crumbly. Alternately, you can mash the ingredients together in a bowl using a fork, or just smoosh everything together with your fingers.
Sprinkle over muffins or coffee cake immediately before baking.