INGREDIENTS:
- 2 1/2 cups all-purpose flour
- 1 cup white sugar
- 1 tablespoon baking powder
- 1 teaspoon salt
- 1/2 cup vegetable oil
- 8 egg yolks
- 2 tablespoons grated orange pee
- 1 teaspoon vanilla extract
- 1/3 cup orange juice
- 1/3 cup water
- 8 egg whites
- 1/2 teaspoon cream of tartar
- 1/2 cup white sugar
INSTRUCTIONS:
- Preheat an oven to 325 degrees F and grease 16 muffin cups. Stir the flour, 1 cup sugar, baking powder, and salt together in a large bowl. Make a well in the center of the flour mixture and add the oil, egg yolks, grated orange peel, vanilla extract, orange juice, and water. Mix well by until no lumps
- Beat the egg whites with the cream of tartar until foamy in a large glass or metal mixing bowl. Gradually add the 1/2 cup sugar, continuing to beat until soft peaks form. Lift your beater or whisk straight up: the egg whites will form soft mounds rather than a sharp peak. Fold the flour mixture into the egg whites. Pour the resulting batter into the prepared muffin cups to about 2/3 full.
- Bake in the preheated oven until a toothpick inserted into the center comes out clean, about 35-40 minutes. Cool in the pans for 10-15 minutes before removing to cool completely on a wire rack.
