8 ounce coarsely chopped semisweet or bittersweet chocolate 1 cup whipping cream 3 tablespoon unsalted butter (no substitutes) 2 teaspoon instant espresso coffee powder or coffee granules
Buttercream
⅔ cup sugar 3 tablespoon water 4 slightly beaten egg yolks 1 tablespoon coffee or chocolate liqueur or water 1 teaspoon vanilla 1 cup unsalted butter (no substitutes)
