Plum Galette - Master recipes

Ingredients

• Crust: -
• 1 1/4 cup (160g) all-purpose flour -
• 1 teaspoon sugar -
• 1/2 teaspoon salt -
• 1 1/4 sticks (137g) unsalted butter, cut into cubes -
• 1/4 cup (57 ml) sour cream -
• 1 egg, beaten, for egg wash (optional) -
• 1 teaspoon cream for egg wash (optional) -
• Coarse sugar for sprinkling (optional) -
• Filling: -
• 6 to 8 tart plums and/or pluots, pitted and sliced (about 570g) -
• 1/3 cup (70 g) sugar -
• 1/8 teaspoon cinnamon -
• 1 teaspoon lemon juice -
• 1 teaspoon orange (or lemon) zest -
• 1 teaspoon quick tapioca, or 1 tablespoon of flour (for thickening) -