The great thing about Flay's rubs is that they can be tweaked according to your tastes and usually include spices already found in your spice cabinet, like cumin, oregano, salt, and black pepper. According to Food Network and She Knows, Flay is also fond of mustard powder, Spanish paprika, anchovies, red and green curry sauce, and hot peppers like chile de arbol, ancho, and cayenne.