Pimento cheese is a mixture of sharp cheddar cheese, pimentos and seasonings that is incredibly popular as a spread or dip in the South. The tangy and spicy flavors make it a delicious sauce for a variety of uses from chicken to vegetables and pasta—particularly as a new twist on macaroni and cheese. We make ours using the classic technique for Mornay—Béchamel sauce enriched with cheese—then add a zing with a splash of tequila. The sauce may be made ahead and refrigerated. Before using, reheat the sauce in a medium saucepan over low heat with 60 ml of milk.