Heat Oven to 400° F, and line a baking pan with parchment paper
Thinly slice Pears and Plums and place on a tray or baking dish. Sprinkle with Sugar, pinch of Salt, Lemon Juice and Zest over all slices.
Roll out Dough on a floured surface until it’s approximately 14” in diameter. Transfer the dough to the baking pan. Spread a thin layer of preserves on the dough, leaving a 2-3 border.
Arrange the Pear and Plum slices starting from the center and working out, leaving a 2-3 inch border of dough. Fold the border over the fruit, starting at the top and moving in one direction so the creases all go the same direction.
Beat the Egg with 1 tsp of water or milk and brush it over the crust. Sprinkle the Sliced Almonds or nuts over the fruit and then Sprinkle the course sugar around the edge, or over the entire galette, if you prefer.
Bake for 30-35 minutes, or until the fruit is bubbling and the crust is golden. Let it cool for 20 minutes before serving.