To make stout beer at home, especially a dry stout recipe, start with selecting the right stout grain. Dark chocolate, roasted malts, and black patent are ideal. Use English hops and an Irish yeast with a low ester profile. The mash temperature should be between 140°F and 150°F (60°C – 65°C) to convert complex sugars into fermentable ones. This process is crucial for how to brew a stout beer that's authentic and flavorful.