Geoffrey Zakarian on Instagram: "Marinated Flank Steak with Sweet Potato 💥 It’s the LAST day to shop #primeday deals for the year!! Now is the time to stock up on all you need for holiday cooking (and gifting)! Link in bio to shop this 9x13 non stick and the rest of my kitchen favorites. Recipe below👇 FLANK STEAK I cup BBQ Sauce ½ cup chopped fresh Italian parsley 2 tablespoons sherry vinegar 1 tablespoon soy sauce 2 teaspoons dried oregano 2 teaspoons dried rosemary 2 teaspoons dried…