To make cherry pie crumb topping, combine flour, sugar and butter to form streusel. Include ingredients such as spices, vanilla extract, nuts or oatmeal for additional flavor and texture. Scatter the crumbs on top of the cherry pie, and bake the pie until the crumb topping is golden brown.
To make a streusel topping according to a recipe from Epicurious, stir 1 1/4 cups of all-purpose flour, 6 tablespoons of light brown sugar, 4 tablespoons of white sugar, 3/4 teaspoon of ground cinnamon and 1/4 teaspoon of salt together in a bowl. Use your fingers to incorporate 1 stick of melted unsalted butter and 1/4 teaspoon of vanilla extract into the flour mixture to form rough clusters.
Follow Martha Stewart's recipe for an almond crumble topping by mixing 1 cup of all-purpose flour with 1/4 teaspoon of salt in a food processor. Pour in 1/2 cup of light brown sugar, 1/4 cup of almonds and 1 stick of diced unsalted butter. Pulse the ingredients intermittently until they turn into a chunky mixture.
The oatmeal crumble topping recipe from Emeril Lagasse calls for a mixture that consists of 1 cup of rolled oats, 1/2 cup of light brown sugar, 6 tablespoons of all-purpose flour, 1/4 teaspoon of cinnamon and 1/8 teaspoon of nutmeg. Chop 1 stick of unsalted butter, and knead it into the mixture to create crumbly pieces.