*Chocolate Cake *First butter \& line 2 9-in cake pans, and preheat oven to 350F (175C) A: Cream 8 oz. (225 g) unsalted butter, softened 1-1/2 cup (300 g) dark brown sugar B: Beat in \\ 1 at a time 3 large (150 g) eggs C: beat at medium\\ speed for 10s 1/2 cup (115 g) sour cream 1 tsp. (5 mL) pure vanilla extract D: Combine 2 oz. (55 g) 70\% cacao dark chocolate 1/4 cup (20 g) pure cacao powder E: Whisk until\\ smooth 1-1/4 cup (295 mL) water F: Sift 3/4 cup (105 g) all-purpose flour 3/4 cup (85 g) cake flour 1-1/4 tsp. (5.75 g) baking soda 1/4 tsp. (1.5 g) table salt G: Mix in flour and chocolate\\ (low speed). Divide between pans.\\ bake 350F (175C) for 25 min\\ cool 5 min, invert onto wire rack \\ Cool completely, assemble and frost