During peak fruit season, you need plenty of recipes to benefit from the fresh fruit and vegetables, and this dessert from Martha Stewart permits you to utilize handfuls of tender, ripe plums in a quick and simple gallette. The filling formula can adjust to almost any seasonal fruit, and the tender, flaky crust is all set in no time after a couple of pulses of the food mill. When there's a basket of fresh plums (or peaches,…