Thickening Fruit Pies

The juiciness of fruit varies from one variety and from one season to another—and from different areas in the same season. Our measurement is for average juiciness. You may want to add a little more or less thickening (flour, cornstarch, quick-cooking tapioca) than the amount specified in the filling recipes. Then, too, you may like your pie fillings a little thicker or thinner than some other cooks. The accepted rule for a fruit filling is that it should be juicy, but not “runny.”