Yellowbird Condiment Sauce, Serrano, 9.8 oz hot sauce is made in Austin, TX from a blend of serrano peppers, carrots, onions, vinegar, lime juice, and spices. This low-sodium, vegan hot sauce adds flavor to any dish. Non-GMO and allergen-free, Yellowbird condiment sauce is named after the Yellowbird which is immune to the heat from spicy peppers like serrano.