Ingredients

• 2.75 cups all-purpose flour
• 3 teaspoons baking powder
• 1 teaspoon salt
• 1.5 cups white sugar
• 0.67 cups unsalted butter , softened
• 0.75 cups Champagne
• 6 large egg whites

Instructions

1. 1 Preheat the oven to 350 degrees F (175 degrees C). Grease a 10-inch round cake pan.
2. 2 Sift flour, baking powder, and salt together in a medium bowl.
3. 3 Beat sugar and butter with an electric mixer in a large bowl until very light and fluffy. Mix in flour mixture alternately with Champagne.
4. 4 Beat egg whites in a glass, metal, or ceramic bowl until stiff peaks form.
5. 5 Fold 1/3 of the egg whites into cake batter to lighten it, then fold in remaining egg whites. Pour batter into prepared pan.
6. 6 Bake in the preheated oven until a toothpick inserted into the center comes out clean, 25 to 30 minutes.

Nutrition per serving