3 new potatoes parchment Recipes

new potatoes, kosher salt, freshly ground black pepper, cold unsalted butter, diced, salmon fillets (about 6 oz each), asparagus, trimmed and cut into 1-inch pieces, scallions, trimmed and sliced, chopped fresh tarragon leaves, extra-virgin olive oil, lemons, halved

new potatoes , each about 1 1/2 to 2 inches in diameter, olive oil, salt and pepper, rosemary, a few sprig thyme, a few sprig sage, head garlic cloves separated, but not peeled, flat leaf parsley chopped