Simple Substitutions

SUBSTITUTIONS:

1 tablespoon cornstarch  = 2 tablespoons flour.
1 cup plus 2 Tbsp. cake flour = 1 cup all-purpose flour
1 teaspoon baking powder = 1/4 teaspoon baking soda plus 1/2 teaspoon cream of tartar.
1 cup whole milk = 1/2 cup evaporated milk plus 1/2 cup water.
1 cup sour milk = 1 cup  milk with 1 tablespoon vinegar or lemon juice added or use 1 cup
     buttermilk.
1 cup sour cream,commercial  = 1/3 cup butter and 2/3 cup milk in any recipe calling for
     sour milk.    
1 cup honey...