I followed Food52’s 7 step recipe.
3 cups peaches and plums (berries or apples also work well)
Juice of 1 lemon
2 tablespoons maple syrup
1 teaspoon vanilla
Cut the peaches into roughly 8 pieces. Mix the fruit, lemon juice, maple syrup, and vanilla together. Pour the fruit into the center of the dough, leaving 1 1/2 inch border. Fold the corners over the filling. Bake at 400 degrees for approximately 25-30 minutes. Transfer to a wire rack and let cool.
See my recipe here.