1.Preheat oven to 350 degrees. Grease an 8-inch square baking pan. In a medium bowl, combine flour, 3/4 cup sugar, baking powder, and salt. Using a pastry cutter or two knives, cut in butter until the mixture resembles coarse crumbs. Put 1/2 cup of the mixture in a small bowl, stir in remaining 2 tablespoons sugar and cinnamon, and set aside. Stir egg and milk into remaining flour mixture.
2.Spoon batter into the prepared pan, and smooth the surface. Pour melted butter over the top. Sprinkle reserved crumb mixture evenly over the butter. Bake the cake until a toothpick inserted in the center comes out clean, about 35 minutes. This cake will keep at room temperature for up to three days or frozen for three months.
