Fresh raspberries
White vinegar

Wash and drain berries. Loosely fill 1 quart mason jar with berries to within 2 inches of top. Heat white vinegar until the first bubbles appear, then fill jar with raspberries in it. Cover jar with plastic wrap - screw on top.

Store in dark cool place for 6 weeks. Strain vinegar through a tea strainer lined with coffee-filter paper. Pour into fresh bottle and cork (use to make Raspberry Fruit Dressing).