Here are some baking substitutions when you're making great dessert recipes you might find helpful: 1 cup Cake Flour : Put 2 tablespoons of cornstarch into a 1 cup measuring cup and fill it the rest of the way with All-Purpose Flour. Blend. Presto! You have cake flour. 1 cup Self-Rising Flour 1 cup all-purpose flour, 1 1/2 teaspoons baking powder and 1/4 teaspoon salt. 1/2 teaspoon Cream of Tartar : 1/2 teaspoon white vinegar or lemon juice. 1 cup Buttermilk : Add a tablespoon of white vinegar (or lemon juice)to a cup of milk and let it stand for 5 to 10 minutes. 1 can Sweetened Condensed Milk : 1 cup nonfat dry milk, 2/3 cup granulated white sugar, 1/2 cup boiling water, 3 tablespoons of melted unsalted butter (mix in a blender or food processor until smooth). Sour Cream : just use plain yogurt. 1 teaspoon Lemon zest : use orange or lime zest or substitute 1/2 teaspoon lemon extract. 1 cup Honey : 3/4 cup maple syrup plus 1/2 cup granulated white sugar or 3/4 cup light or dark corn syrup plus 1/2 cup granulated white sugar or 3/4 cup light molasses plus 1/2 cup granulated white sugar. 1 ounce Unsweetened Chocolate : 3 tablespoons cocoa powder and 1 tablespoon butter, vegetable oil or shortening 1 ounce Milk Chocolate : 1 ounce bittersweet or semi-sweet chocolate and 1 tablespoon granulated white sugar. 1 teaspoon Baking Powder : 1/4 teaspoon baking soda, 1/2 teaspoon cream of tartar and 1/4 teaspoon corn starch. 1 tablespoon cornstarch : 3 tablespoons all-purpose flour. 1 cup Powdered Sugar 1 cup granulated sugar plus 1/8 teaspoon cornstarch processed in a food processor fitted with a metal blade. 1 cup Shortening : 1 cup butter or margarine for regular or butter-flavored shortening. *DO NOT use vegetable oil for shortening when recipe calls for melted shortening. 1 teaspoon Ground Ginger : 1 teaspoon ground allspice. 1 teaspoon Ground Allspice : 1/4 teaspoon ground cinnamon, 1/2 teaspoon ground cloves and 1/4 teaspoon ground nutmeg. 1 teaspoon Lemon Juice : 1/2 teaspoon of white vinegar.