4 chocolate hazelnut buttercream Recipes

boiling water, sugar, flour, cocoa powder, baking soda, baking powder, salt, eggs, hazelnut creamer, oil, vaniila extract, butter, nutella, sugar, heavy cream

hazelnut flour, all-purpose flour, eggs, sugar , plus 1 3/4 lb, egg whites, frangelico and espresso simple syrup, recipe follows, espresso buttercream , recipe follows, chocolate frangelico ganache , recipe follows, hazelnuts, toasted and roughly chopped, for garnish, gilded hazelnuts , recipe follows

shortening, for greasing pans, cake flour, plus 3 1/3 cups, divided, eggs, at room temperature, lightly beaten, hazelnut-flavored liqueur (recommended : frangelico), hazelnut extract, granulated sugar, baking powder, baking soda, fine-grain sea salt, peeled, toasted and finely chopped or ground hazelnuts, unsalted butter, at room temperature, sour cream, at room temperature, unsalted butter, at room temperature, all-purpose flour, granulated sugar, heavy whipping cream, peeled, toasted and finely chopped hazelnuts, fine-grain sea salt, hazelnut-flavored liqueur (recommended : frangelico), hazelnut extract, chopped bittersweet chocolate or chocolate disks, bittersweet chocolate, finely chopped or chocolate disks, granulated sugar, egg whites, at room temperature (from 7 to 8 large eggs), unsalted butter, at room temperature, hazelnut extract, peeled, toasted and finely chopped hazelnuts, whole peeled, toasted hazelnuts, milk chocolate curls