Royal Strawberry Acid
Take three pounds of ripe strawberries, two ounces of citric acid, and one quart of spring water. Dissolve the acid in the water, and pour it on the strawberries, and let them stand in a cool place twenty-four hours. Then drain the liquid off, and pour it on three more pounds of fruit; let it stand twenty-four hours. Add to the liquid its own weight of sugar; boil it three or four minutes in a porcelain-lined preserve-kettle, lest metal may affect the taste, and when cool cork it in bottles lightly for three days, then tightly, and seal them. Keep in a dry and cool place. It is delicious for sick and well.