Baking soda not only makes cakes and quick breads rise, it helps tenderize baked goods and has a browning effect. Because baking soda has that browning effect, you will see it used in some cookie and cake batters. Also, using a small amount of baking soda in cookies means they’ll have a crisp texture. The two are also used together when the batter may have enough to neutralize the acid component of the recipe, but not enough to give it some lift.
Today, most of the baking powders at grocery stores are labled “Double Acting.” That means some of the gas is released when cold, but that it needs heat to complete the reaction process. Because it reacts when cold, that means you can mix your cake batter and let it sit for a bit and the remaining gases will form when baked.
Keep in mind that white powders have a shelf-life. Both usually have expiration dates on the package. If either one is expired, your baked good can fail.
The two white powders are also completely interchangeable. Here’s the basic formula:
— Use baking soda in place of baking powder as long as there is an acidic ingredient in the recipe. Use 1 teaspoon baking powder (no more than 1 1/4 teaspoons) per cup of flour or 1/4 teaspoon baking soda per cup of flour.
— If the recipe calls for 1 teaspoon baking powder, use 1/4 teaspoon baking soda provided there is an acidic ingredient. If a recipe has baking powder with an acidic ingredient, you need to add some baking soda to neutralize the acid.
CHEWY CHOCOLATE CHIP COOKIES
Makes: 4 dozen / Preparation time: 10 minutes / Total time: 30 minutes
3/4 cup (11/2 sticks) unsalted butter, softened
2/3 cup dark brown sugar
2/3 cup sugar
2 tablespoons light corn syrup
1 tablespoon cider or white vinegar
2 large eggs
1 tablespoon vanilla extract
1/2 teaspoon salt
1/2 teaspoon baking powder
1/4 teaspoon baking soda
2 1/4 cups unbleached all-purpose flour
3 cups semisweet chocolate chips
Preheat the oven to 375 degrees. Lightly grease (or line with parchment) several baking sheets.
In a mixing bowl, cream together the butter, sugars, corn syrup and vinegar for 3 minutes. Beat in the eggs one at a time, beating well after each addition. Beat in the vanilla, salt, baking power and baking soda. Stir in the flour. Fold in the chocolate chips.
Drop the dough by the tablespoonful onto baking sheets. Bake for 10 minutes or until just set. Remove them from the oven and cool 1 minute on the baking sheet. Transfer cookies to a wire rack to cool completely.
Adapted from “The King Arthur Flour Cookie Companion: The Essential Cookie Cookbook” by King Arthur Flour (The Countryman Press, $29.95). Tested by Susan Selasky for the Free Press Test Kitchen. Analysis per 1 cookie.
124 calories (44 percent from fat), 6 g fat (4 g saturated fat), 17 g carbohydrates, 1 g protein, 40 mg sodium, 17 mg cholesterol, 1 g fiber.