Potassium tartrate. A crystalline powder derived from wine. It is useful in making meringues, increasing the volume of beaten egg whites. It can also be mixed with bicarbonate of soda (US: baking soda) to make baking powder.

A true cream tea should consist of a pot of tea, sugar in a bowl, milk in a jug, with a moist scone containing sultanas, clotted cream and a pot of strawberry jam (US: jelly). It should not be served with dry scones, sugar in packets, milk and strawberry jam (US: jelly) in plastic pots and thin cream beaten to an airy consistency. The great cream teas come from Cornwall and Devon where the clotted cream is thick and crusty.

Young, tender prawn which prefer the brackish waters of the salt marshes of South Carolina and Georgia. Plump and sweet in flavour.

Sweet and sour fruit mustard similar to chutney.

Cress provides feathery and delicate sprout from seeds. Good in salads. Sometimes provided with mustard, sometimes with rape.