This is a subtle cake: the coffee tempers the sweetness, and the buttery sweetness keeps it all mellow. Even if you don't make cakes, this one is a cinch. Don't be alarmed if the two sponge layers look thin when you unmold them. They are meant to be, because the cake gains a lot of height with its frosting. This cake is all about old-fashioned, homespun charm, so don't worry about how messy it looks: however the frosting goes on is fine. (Photo: Craig Lee for NYT)
How to make perfect coffee buttercream icing. Ideal for cupcakes, macarons and layer cakes - especially coffee & walnut cake.
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