Cinnamon Crumble Coffee Cake
Unlike a traditional sponge cake that relies on whipped eggs for structural lift, coffee cake uses chemical leaveners like baking powder to support a heavy fat-and-sugar ratio. This style descends from the German Streuselkuchen tradition, where yeast doughs were historically topped with crumbly streusel. Bakers often ruin this pastry through improper mixing technique or incorrect baking temperatures.
Proper storage involves keeping the baked pastry in an airtight container at room temperature for up to three days. Maintaining this seal prevents the crumb topping from absorbing ambient kitchen humidity and turning soft.