Cut 2 circles of wax paper to fit in the bottom of 2 9-inch round cake pans. Coat the bottoms of the pans with cooking spray (but not the sides of the pans), and line the bottoms with the wax paper circles. Coat the wax paper with cooking spray, and dust evenly with 1 tablespoon of flour.
Combine the sugar, butter, and vanilla extract in the bowl of a stand mixer; beat at medium speed for a few minutes, until well blended. Add the Ener-G eggs; beat until blended. Lightly spoon 2 1/4 cups all-purpose flour into dry measuring cups and level with a knife. Combine the flour in a large bowl with the baking powder, salt, cinnamon, and nutmeg. Add the flour mixture and the milk alternately to the sugar mixture, beginning and ending with the flour mixture.
Divide the batter evenly among the prepared pans. Tap the pans sharply against the counter once to remove any air bubbles, then bake at 350 degrees for 25 minutes; a wooden pick inserted in the centers should come out clean. Cool for 10 minutes in the pans on a wire rack, then remove the cakes from the pans and cool completely on a wire rack.
Place the jam in a bowl and stir with a whisk to smooth it out. Place 1 cake layer on a plate, and spread with 1/2 cup of the jam. Top with the second cake layer; spread the remaining 1/2 cup jam over the top of the cake. Sprinkle with the powdered sugar.
Combine the sugar, butter, and vanilla extract in the bowl of a stand mixer; beat at medium speed for a few minutes, until well blended. Add the Ener-G eggs; beat until blended. Lightly spoon 2 1/4 cups all-purpose flour into dry measuring cups and level with a knife. Combine the flour in a large bowl with the baking powder, salt, cinnamon, and nutmeg. Add the flour mixture and the milk alternately to the sugar mixture, beginning and ending with the flour mixture.
Divide the batter evenly among the prepared pans. Tap the pans sharply against the counter once to remove any air bubbles, then bake at 350 degrees for 25 minutes; a wooden pick inserted in the centers should come out clean. Cool for 10 minutes in the pans on a wire rack, then remove the cakes from the pans and cool completely on a wire rack.
Place the jam in a bowl and stir with a whisk to smooth it out. Place 1 cake layer on a plate, and spread with 1/2 cup of the jam. Top with the second cake layer; spread the remaining 1/2 cup jam over the top of the cake. Sprinkle with the powdered sugar.