Preheat the oven to 350°F. Line two 9-inch round cake pans with parchment paper on the bottoms and spray the sides with baking spray. Whisk the flour, baking powder, and salt together in a bowl and set aside.
3 cups cake flour, 1 Tablespoon baking powder, 1/2 teaspoon salt
In the bowl of a stand mixer, beat the sugar, butter, and oil together until light and fluffy, about 3-4 minutes. Add the egg whites and egg, one at a time, along with the vanilla and almond extracts, beating well after each addition for a total of another 3-4 minutes. Be sure to scrape the bottom and sides of the bowl a couple of times for even mixing.
1 1/2 cups granulated sugar, 3/4 cup salted butter, 1/4 cup canola oil, 4 egg whites, 1 whole large egg, 2 teaspoons vanilla extract, 1 teaspoon almond extract
Add the flour mixture alternately with the milk, scraping the bottom and sides of the bowl.
1 cup whole milk
Divide the batter evenly between both cake pans, then bake for 20-25 minutes until a toothpick inserted into the center of the cakes comes out clean.
Transfer the cakes to a wire cooling rack to cool for 10 minutes before flipping them out to cool completely.