German Plum Dumplings Are a Classic Fall Dessert
1 tsp Lemon, zest
12 Plums
1 Egg, large
3/4 cup All-purpose flour
1/4 tsp Baking powder
1/2 cup Cinnamon sugar
1 Dash Kosher salt
3 tbsp Sugar
12 Sugar cubes
4 pieces Zwieback (crushed or 1 cup bread crumbs)
10 tbsp Butter