- 1 cup butter, room temperature
- 1 1/2 cups sugar
- 3 eggs, separated
- 2 cups flour
- 1 teaspoon baking powder
- 1 teaspoon baking soda
- 1 cup sour cream
- Zest of 1 orange
- 1 cup chopped nuts, pecans or walnuts
- 1/4 cup orange juice
- 1/3 cup Grand Marnier
- 2 tablespoons slivered almonds




