Banana Crumb Cake is a moist banana cake topped with an extra thick layer of streusel topping, almost as thick as the cake itself! Also known as Streuselkuchen, a crumb cake is a specific type of coffee cake, sometimes used interchangeably.But, the focus is on the delicious buttery, crumb topping, which I will not complain about! This recipe all starts with the perfect Crumb Cake, which you will also want to check out, but with added mashed bananas.Ingredients & Substitutions Butter: Unsalted butter, which gives you more control over the amount of salt in a recipe, is used in both the crumb topping and cake.

If using salted butter, you may want to lessen the salt.Sugar: You will use both granulated and light brown sugar in the crumb topping; you just need granulated sugar for the cake.Flour: Cake flour is used in both the crumb topping and the cake.

It results in such a tender crumb in the cake.When the cake was tested with all-purpose flour, it was not the soft texture we were going for, so I would not recommend substituting it.If you don’t have any cake flour at home, it’s easy to make some for this recipe.

Buttermilk: Adding room-temperature buttermilk to the cake batter results in a moist, tender, flavorful cake.Eggs: Be sure the eggs are at room temperature before starting the recipe.You will need two large eggs for the cake.

Use one whole egg and just the yolk of the second egg.Bananas: This is a delicious way to use up ripe ban

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