8 quadruple Recipes

unsalted butter, softened, unsweetened chocolate, chopped, sugar, eggs, pure vanilla extract, kosher salt, all-purpose flour, bittersweet chocolate, chopped into 1/2-inch pieces, white chocolate, chopped into 1/2-inch pieces, milk chocolate, chopped into 1/2-inch pieces, parchment paper

plain flour, baking soda, cocoa, sugar, unsalted butter, eggs, vanilla extract, sour cream, boiling water, dark chocolate chips, cocoa, water, sugar, dark chocolate (from a thick chocolate bar)

all purpose flour (bread flour for extra chewiness), unsweetened cocoa, baking powder, salt, semisweet chocolate, chopped, butter, eggs, brown sugar, white sugar, vanilla extract, pecans, chopped, semisweet chocolate chips, white chocolate chips

golden crisco shortening, sugar, brown sugar , firmly packed, vanilla extract, eggs, beaten, all-purpose flour, cocoa, baking soda, salt, milk, semi-sweet chocolate chips, milk chocolate chips, dark chocolate chips, white chocolate chips

all-purpose flour, baking soda, cocoa, sugar, soft unsalted butter, eggs, good-quality vanilla extract, sour cream, boiling water, semisweet chocolate chips or morsels, cocoa, water, sugar, dark chocolate (from a thick bar if possible), cut into splinters of varying thickness, for garnish, special equipment : 2-lb loaf tin (approximately 9 1/2 by 4 1/2 by 3 inches deep), lined with greased foil, pressed into the corners and with some overhang at the top. alternatively, substitute a silicon loaf tin, no foil lining necessary.

chocolate , 70% cocoa solids, unsalted butter, plus more for greasing, plain flour, baking powder, caster sugar, eggs, lightly beaten, vanilla essence, milk chocolate, cut into large chunks, white chocolate, cut into large chunks, pecans, broken into pieces and lightly roasted, maltesers , layer in between the mixture