3 quartet butters Recipes

camembert cheese, rind removed, softened salted butter or 125 g unsalted butter, fresh ground black pepper, roquefort cheese, softened unsalted butter, freshly chopped parsley, fresh ground black pepper, stilton cheese, softened unsalted butter, crushed green peppercorn, grated mature farmhouse cheddar cheese, softened salted butter or 100 g unsalted butter, garlic clove, peeled and crushed, chopped fresh lemon thyme leaves

sushi-grade ahi tuna loin, heads endive, plus additional leaves for plating, butter, salt, sugar, lemon juice, lemon vinaigrette , recipe follows, fleur de sel, for garnish