Chef Marla's Super Shit-arein, 2.5 Ounce, Horse Shit, Horseradish Seasoning Horse Shit arein - A natural on prime rib, roasts & steaks. Incredible mixed with butter & spread on fish such as salmon or mahi mahi. Horse Shit arein - A natural on prime rib, roasts & steaks. Mix with mayo for a great sandwich spread, softened butter (then harden) then top salmon or a steak, mix in mashed potatoes, sprinkle on vegetables & more! Chef Marla's Super Shit-arein, 2.5 Ounce, Horse Shit, Horseradish Seasoning