For this:Try this:
Baking powderfor 1 teaspoon, substitute 1/2 teaspoon cream of tartar plus 1/4 teaspoon baking soda
Bread crumbs, fine, dryfor 1/4 cup, substitute 3/4 cup soft bread crumbs, or 1/4 cup cracker crumbs, or 1/4 cup cornflake crumbs, or 2/3 cup rolled oats
Buttermilkfor 1 cup, substitute sour milk: 1 tablespoon lemon juice or vinegar plus enough milk to make 1 cup (let stand 5 minutes before using); or 1 cup plain yogurt
Chocolate, semisweetfor 1 ounce, substitute 3 tablespoons semisweet chocolate pieces; or 1 ounce unsweetened chocolate plus 1 tablespoon sugar
Chocolate, sweet baking (such as German's Sweet chocolate)for 4 ounces, substitute 1/4 cup unsweetened cocoa powder plus 1/3 cup sugar and 3 tablespoons shortening
Chocolate, unsweetenedfor 1 ounce, substitute 3 tablespoons unsweetened cocoa powder plus 1 tablespoon cooking oil or shortening, melted
Cornstarch (for thickening)for 1 tablespoon, substitute 2 tablespoons all-purpose flour
Corn syrupfor 1 cup, substitute 1 cup granulated sugar plus 1/4 cup water.
Eggfor 1 whole egg, substitute 2 egg whites, or 2 egg yolks, or 1/4 cup frozen egg product, thawed
Flour, cakefor 1 cup, substitute 1 cup minus 2 tablespoons all-purpose flour
Flour, self-risingfor 1 cup, substitute 1 cup all-purpose flour plus 1 teaspoon baking powder, 1/2 teaspoon salt, and 1/4 teaspoon baking soda
Fruit liqueurfor 1 tablespoon, substitute 1 tablespoon fruit juice
Gingerroot, gratedfor 1 teaspoon, substitute 1/4 teaspoon ground ginger
Half-and-half or light creamfor 1 cup, substitute 1 tablespoon melted butter plus enough whole milk to make 1 cup
Heavy cream, whippedfor 1 cup, substitute 2 cups whipped dessert topping
Honeyfor 1 cup, substitute 1 1/4 cups granulated sugar plus 1/4 cup water.
Margarinefor 1 cup, substitute 1 cup butter or 1 cup shortening plus 1/4 teaspoon salt
Mascarpone cheesefor 8 ounces, substitute 8 ounces regular cream cheese
Milkfor 1 cup, substitute 1/2 cup evaporated milk plus 1/2 cup water, or 1 cup water plus 1/3 cup nonfat dry milk powder
Molassesfor 1 cup, substitute 1 cup honey
Sour cream, dairyfor 1 cup, substitute 1 cup plain yogurt
Sugar, granulatedfor 1 cup, substitute 1 cup packed brown sugar or 2 cups stirred powdered sugar
Whipping cream See Heavy cream, above
Yeastfor 1.06-ounce compressed cake, substitute 1/4-ounce envelope active dry yeast

SPICES

Allspicecinnamon; dash nutmeg; or dash cloves
Aniseedfennel seed or a few drops anise extract
Apple pie spicefor 1 teaspoon, substitute 1/2 teaspoon ground cinnamon plus 1/4 teaspoon ground nutmeg, 1/8 teaspoon ground allspice, and dash ground cloves or ginger
Basiloregano or thyme
Cardamomginger
Cherviltarragon or parsley
Chili powderdash bottled hot pepper sauce plus a combination of oregano and cumin
Chivesgreen onions; onion; or leek
Cilantroparsley
Cinnamonnutmeg or allspice (use only 1/4 of the amount)
Clovesallspice; cinnamon; or nutmeg
Cuminchili powder
Gingerallspice; cinnamon; mace; or nutmeg
Italian seasoningblend of any of these: basil, oregano, rosemary, and ground red pepper
Maceallspice; cinnamon; ginger; or nutmeg
Marjorambasil; thyme; or savory
Mintbasil; marjoram; or rosemary
Nutmegcinnamon; ginger; or mace
Oreganothyme or basil
Parsleychervil or cilantro
Poultry seasoningfor 1 teaspoon of poultry seasoning, substitute 3/4 teaspoon sage plus a 1/4 teaspoon blend of any of these: thyme, marjoram, savory, black pepper, and rosemary
Pumpkin pie spicefor 1 teaspoon pumpkin pie spice, substitute 1/2 teaspoon ground cinnamon plus 1/4 teaspoon ground ginger, 1/4 teaspoon ground allspice, and 1/8 teaspoon ground nutmeg
Red pepperdash bottled hot pepper sauce or black pepper
Rosemarythyme; tarragon; or savory
Saffrondash turmeric (for color)
Sagepoultry seasoning; savory; marjoram; or rosemary
Savorythyme; marjoram; or sage
Tarragonchervil; dash fennel seed; or dash aniseed
Thymebasil; marjoram; oregano; or savory