A handy chart to help you design your own streusel and crumb toppings for muffins, cakes, and pies.
To make a crumb or streusel topping use the basic recipe on the right side of the chart. The first four ingredients must be used and the quantities are a 1:1:1:1 ratio.
Enchancements are listed in shades of pink. Simply follow the color and select desired enhancements. Ad-ins must not exceed 1/3 cup total, meaning you can use more than one, i.e.: oats plus chopped pecans would equal 1/3 cup.
If a crunchy topping is desired add 1 beaten egg white to the topping mixture at the end of combining it.
These recipes are enough topping for a 9" x 5" loaf, 12 regular sized muffins, a 9" pie, or 9" round or square cake.