Have all ingredients at room temperature, about 70°F. Preheat the oven to 350°F. Grease and flour three 8-inch round cake pans and line the bottoms with rounds of parchment paper.
Whisk together in a medium bowl:
Beat in a large bowl, or in a stand mixer with the paddle attachment, until creamy:
Gradually add and beat until very light and fluffy, about 5 minutes:
Beat in:
Beat in one at a time, scraping down the sides of the bowl after each addition:
On low speed, add the flour mixture in 3 parts, alternating with:
in 2 parts, beating just until smooth. With the last addition of flour, fold in:
Scrape the batter into the prepared pans. Bake until a toothpick inserted in the center comes out clean, 20 to 25 minutes.
Let cool in the pans on a rack for 15 minutes, then invert the cakes onto the rack, peel off the parchment, and turn them right side up to cool completely. Spread between the layers:
Frost the outside of the cake with:
Sprinkle around the edge of the top of the cake:
Refrigerate for at least 1 hour and serve within 2 days.