Classic Vanilla Layer Cake (Printer-Friendly Version)

# What You'll Need:

01 - 2 ½ cups cake flour
02 - ½ teaspoon kosher salt
03 - 1 tablespoon baking powder
04 - ¾ cup unsalted butter, room temperature
05 - 1 ¾ cups granulated sugar
06 - 3 large eggs
07 - 2 large egg whites
08 - 1 tablespoon vanilla extract
09 - ¾ cup buttermilk

# Let's Cook!:

01 - Preheat oven to 350°F. Grease and flour two 9-inch cake pans and line bottoms with parchment paper. Set aside.
02 - In a bowl, combine cake flour with salt and baking powder. Use a whisk to blend everything together thoroughly. Set aside.
03 - In a large mixing bowl, beat butter with sugar for 2 minutes, scraping down the sides of the bowl as needed. Add in eggs, egg whites, and vanilla extract. Beat for 2 more minutes until light and fluffy.
04 - Alternating additions of the dry ingredients with the buttermilk, slowly add each (about 3 additions of each). After the final addition of buttermilk, beat for 1-2 minutes until the batter is smooth and fluffy.
05 - Pour the batter evenly into prepared cake pans. Bake for 25-28 minutes, or until a toothpick inserted into the center comes out clean.
06 - Allow cakes to cool in pans for 5 minutes, then carefully remove from pans and cool completely on a wire rack before frosting.

# Recipe Notes:

01 - You can use baking spray or homemade cake release to grease the pans instead of butter and flour.
02 - Whisking the dry ingredients helps keep the flour airy and light for a better texture.
03 - Buttermilk can be substituted with whole milk or an easy buttermilk substitute (1 tablespoon lemon juice or vinegar plus enough milk to make 3/4 cup).
04 - For best results, bake the cake layers the night before serving. Wrap cooled cake in plastic wrap and assemble/frost the day of serving.
05 - Level the cakes by using a serrated knife to carefully slice off the domed tops. This creates a sturdier layer cake that won't slide with frosting between the layers.