Rice Waffles

1 cup sifted flour
2 teaspoons baking powder
1/2 teaspoon baking soda
1/2 teaspoon salt
1 tablespoon sugar
3 eggs, separated
1/3 cup melted shortening, cooled
1 1/2 cups buttermilk or milk soured with 2 tablespoons kalamansi juice
1 cup cooked rice

Sift together dry ingredients. Beat egg whites until stiff but
not dry. Beat egg yolks thoroughly Stir in shortening and buttermilk.
Add to sifted dry ingredients. Mix well. Fold in rice and stiffly beaten egg whites. Bake in hot waffle iron until browned. Makes 8 waffles.