My espresso cake features moist vanilla cake with a boozy coffee syrup. Then the whole thing is frosted in coffee buttercream and silky smooth mocha ganache. If you like coffee you'll adore this cake.
Preheat oven to 350 degrees. Line (3) 9 inch cake pans with parchment paper and spray with nonstick baking spray.
In a large bowl combine all cake ingredients except Bailey's and espresso powder until just combined. Do not overmix.
Evenly divide between prepared pans and bake for 25-30 minutes. Cool completely.
In a small saucepan heat Bailey's over medium low. Once it simmers remove from heat and whisk in espresso powder. Cool.
Pour into squeeze bottle. Squeeze a small amount onto each layer of the cake before the frosting.
For the frosting and assembly
Cream butter, salt, and vanilla until light and fluffy. Add powdered sugar a little at a time. Add heavy cream as needed until you reach your desired consistency.
After Baileys mixture soaks in a bit on the first layer scoop around 1 cup of frosting onto the first layer and spread evenly.
Repeat Bailey's mixture and frosting for the remaining layers.
Completely frost entire cake with a thin layer of frosting. Refrigerate for 20-30 minutes.
Add 3 tablespoons of Bailey's mixture and 1 additional cup of powdered sugar to remaining frosting and frost the sides and top of the cake.
For the Ganache
In a small saucepan bring cream to a simmer. Pour over chocolate and let stand for a minute. Whisk until smooth.
Flood top of cake with ganache. Spread evenly allowing some to drip down the sides as desired.