WHAT IS LEAVENING BREAD RECIPES

Steps:

• Preheat the oven to 350 degrees F and butter a 9-by-5-inch loaf pan. Line the pan with a piece of parchment paper long enough to have a 2-inch overhang on 2 sides (this will help you lift the bread out of the pan).
• Whisk the almond flour, baking powder and salt together in a large bowl. Whisk in the egg yolks and butter. 
• Beat the egg whites in another large bowl with an electric mixer on medium-high speed until they hold soft peaks. Stir about a third of the whipped egg whites into the almond flour mixture. Then gently fold in the remaining egg whites, being careful not to overmix (it's okay if there are some egg white streaks in the batter). 
• Pour the batter into the prepared pan and bake until golden brown and a toothpick inserted in the center comes out clean, 25 to 30 minutes. Let cool completely in the pan on a rack. Use the parchment to help lift the bread out. Slice for sandwiches or toast or eat with a slather of butter. Wrap and store at room temperature for up to 5 days. 

Steps:

• Make sourdough starter at least 1 week before making bread. In large glass bowl, dissolve 1 1/2 teaspoons yeast in warm water. Stir in 3 cups flour and 4 teaspoons sugar. Beat with electric mixer on medium speed about 1 minute or until smooth. Cover loosely; let stand at room temperature about 1 week or until mixture is bubbly and has a sour aroma. Transfer to 2-quart or larger nonmetal bowl. Cover tightly; refrigerate until ready to use.
• Use sourdough starter once a week or stir in 1 teaspoon sugar. After using starter, replenish it by stirring in 3/4 cup all-purpose flour, 3/4 cup water and 1 teaspoon sugar until smooth. Cover loosely; let stand in warm place at least 1 day until bubbly. Cover tightly; refrigerate until ready to use. To use, stir cold starter; measure cold starter, and let stand until room temperature (starter will expand as it warms up).
• Measure 1 cup of the sourdough starter and all remaining bread ingredients carefully, placing in bread machine pan in the order recommended by the manufacturer.
• Select Basic/White cycle. Use Medium or Light crust color. Do not use delay cycle. (Total time will vary with appliance and setting.) Remove baked bread from pan; cool on cooling rack.