Version I:

2 c. sifted cake flour
1 tsp. baking soda
1 tsp. baking powder
1/2 tsp. salt

Sift the above together and use as self rising flour. This is equal to 2 cups of self-rising flour and is best used when making cakes and fruit breads.

Version II:

1 cup unsifted all purpose flour
1 1/2 teaspoons double acting baking powder
1/2 teaspoon salt

This is equal to 1 cup of self-rising flour and is best used when making quick breads, scones, biscuits and cookies.