"Say goodbye to buttercream...."
all-purpose flour
instant espresso
kosher salt
baking powder
baking soda
(1 stick) butter, softened
granulated sugar
packed brown sugar
sour cream, room temperature
large eggs, room temperarture
pure vanilla extract
freshly brewed coffee
(2 sticks) butter, softened
(14-oz.) can sweetened condensed milk, chilled
pure vanilla extract
Pinch kosher salt