New England Apple Cheddar Galette - Walter Stewart's Market

Ingredients

• 1 1/2 cups (200g) of all purpose flour
• 1/2 teaspoon salt
• 1 1/2 teaspoons sugar
• 1 1/2 sticks (3/4 cups, 6 ounces, 170 g) unsalted butter
• 1/4 cup plus 2 Tbsp (85 ml) sour cream (full fat, not light)
• 2 Tbsp finely grated sharp cheddar cheese
• 4 good cooking apples, such as McIntosh, Courtland, Jonagold, Pippin, Golden Delicious, Jonathan, Fuji, or a mixture of various cooking apples (NOT red delicious)
• 1/2 teaspoon lemon zest
• 1 half of a lemon, or the juice of half a lemon (to acidulate the water for holding the apples while you peel them to keep them from discoloring)
• 1 Tbsp maple syrup
• 2 teaspoons minute tapioca or instant tapioca for thickener (can substitute corn starch)
• 1 teaspoon ground cinnamon
• 1/2 cup lightly packed grated cheddar cheese