Recipes: Skillet brownies on the grill

Preparation:  Preparation time: 10 mins Cooking time: 1 hr 10 mins Serving: 8 Ingredients: 3/4 cup (about 3 1/4 ounces) plus 1 tablespoon all-purpose flour 1/2 teaspoon kosher salt or fleur de sel 1/4 teaspoon baking soda 7 ounces unsweetened chocolate, chopped 1/2 cup (4 ounces) salted butter, plus more,...