Try this Sweet Potato Souffle recipe
Unlike a traditional egg-leavened French souffle that rises dramatically before deflating, Southern-style sweet potato souffles rely on baking powder or simple starches for structure beneath a crumbly crust. European settlers encountered sweet potatoes in the Americas and quickly adapted them into traditional European casserole frameworks. The natural moisture in mashed roots requires adequate fat and binders to set properly during baking.
Sucrose breaks down during baking when exposed to heat and natural fruit acids, promoting Maillard browning in the oat and brown sugar topping. Whisking eggs thoroughly into the wet potato base incorporates air pockets, preventing a dense, heavy texture. Maintain an oven temperature of 350 degrees Fahrenheit. Bake the dish for 30 to 35 minutes until the edges bubble and the surface turns golden brown.