Total Time
1 Hour 30 Mins
Yield
Makes one 8-in. cake (serves 12 to 16)
Photo: Thomas J Story

How to Make It

Step 1

Preheat oven to 350° with a rack in center. Butter two 8-in. cake pans, then line bottoms with parchment paper cut to fit.

Step 2

In a stand mixer with the paddle attachment (or a handheld mixer with an egg-beater attachment; a whisk attachment won't mix the batter properly), beat butter on medium speed until pale and fluffy, about 5 minutes. Scrape sides and bottom of bowl halfway through.

Step 3

To butter, add sugar and beat on high speed until pale and fluffy. "Every time the paddle turns, sugar crystals cut through the butter, creating little pockets of air for a fluffy cake." Scrape sides and bottom of bowl. On low speed, mix in egg whites and vanilla, then beat on high until thick and smooth; scrape bowl again. "Scraping down the bowl is huge. If you see butter at the bottom when you pour the batter into the pans, that's a rookie mistake."

Step 4

Onto a large piece of parchment paper, sift flour and baking powder. Add salt.

Step 5

Turn mixer to low. Pick up parchment from opposite corners and tip about one-third of flour mixture into bowl; mix just until combined. Scrape bowl, then drizzle in half of buttermilk and mix just until combined. "Otherwise you may develop the gluten in the flour, and your cakes will be tougher, denser, and sometimes gummy." Repeat, then mix in remaining one-third of flour mixture the same way. Scrape once more, "then give it a final spinaroo."

Step 6

Pour batter evenly into prepared pans, smoothing tops flat with a rubber spatula. Give the pans a couple of taps on the counter to deflate any overly large air pockets. Bake on center rack, rotating 180° halfway through, until top is pale golden, sides are deeper brown and pulling slightly away from sides, and top springs back lightly when pressed, 30 to 50 minutes. "Don't overbake it or it will be dry."

Step 7

Remove cakes from oven and let cool 10 minutes in pans. Invert cakes onto a cooling rack "so their tops flatten out," and let cool completely.

Step 8

Make ahead: Up to 1 day at room temperature and up to 1 month frozen. Bake cakes and cool, then slice each into 2 layers. Stack layers between pieces of parchment paper, wrap in plastic wrap, and leave on counter overnight (or freeze in a resealable freezer bag). On the day you plan to serve, make buttercream and assemble cake (you can frost the cake frozen, but let it come to room temperature before serving).

Chef's Notes

Nutritional analysis is per serving of plain cake.

For Daykin's expert tips on how to frost a cake, go to our step-by-step photos at http://www.sunset.com/food-wine/techniques/how-to-frost-a-cake. Or, to watch a video of how she frosts, go to sunset.com/frosting.

Butter Baked Goods, Vancouver

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