50 g plain flour
50 g butter
1 ltr chicken stock
350 ml full fat milk
150 g almonds, shelled and ground
150 ml thin cream
1 egg yolk
salt and pepper

Make a white sauce by gently blending the flour in the melted butter in a large pot and gradually stirring in the stock and milk. Heat, stirring constantly, until nearly boiling, then turn down the heat to simmer very gently for 10-15 minutes. Stir in the ground almonds and heat through for 3-4 minutes. Before serving, beat the egg yolk and cream together, stir into the soup, and heat through. Season to taste.