Poached Fillet of Sole with Grapes

• butter
• 3 shallots, finely chopped
• 8 fillets of sole
• salt and freshly ground black pepper

Spread 2 tablespoons butter in a shallow fireproof pan and sprinkle with finely chopped shallots (1 small onion may be substituted). Season fillets of sole to taste with salt and freshly ground black pepper; roll them up; fasten with toothpicks and arrange in the pan. Moisten with dry white wine, an