Recipes: Grilled halibut with basil-shallot butter

Preparation:    Preparation time: 10 mins Cooking time: 10 mins Serving: 6 Ingredients: 1½ cups (loosely packed) fresh basil leaves 1 large shallot, coarsely chopped 1 stick (4 oz.) unsalted butter, room temperature 1 tsp. finely grated lemon zest 6-oz. halibut fillets Extra-virgin olive oil Kosher salt and freshly ground black pepper Instructions:...