Substitutions

Cream of tartar (1 teaspoon) ... 2 teaspoons lemon juice or vinegar

Flour--Cake (1 cup) ... 1 cup all-purpose flour minus 2 tablespoons

Flour--Self-Rising (1 cup) ... 7/8 cup all-purpose flour plus 1-1/2 teaspoons baking powder and 1/2 teaspoon of salt

Mustard--prepared (tablespoon) ... Mix together 1 tablespoon dried mustard, 1 teaspoon water, 1 teaspoon vinegar and 1 teaspoon sugar