Blueberry Skillet Galette

Ingredients

• *For the dough:*
• 1 1/2 cup all-purpose flour
• 1 cup spelt flour
• 1 teaspoon kosher salt
• 1 teaspoon sugar
• 1 egg
• 1/4 cup apple cider vinegar
• 1/4 cup ice water
• 2 sticks (16 tablespoons) salted butter, cubed and freezer-cold
• *For the filling:*
• 4 dry pints of wild blueberries (or 3 dry pints conventional), ​​sorted of any stems or debris
• 4 tablespoons sugar
• 1 tablespoon plus 1 teaspoon organic corn starch
• 3 tablespoons brandy
• 1 pinch kosher salt
• 1 tablespoon finely grated orange zest
• 1 tablespoon orange juice
• 5 drop mole bitters (I used Bitterman’s)
• *For finishing the galette:*
• 1 egg, beaten (for egg wash)
• Demerara sugar, to sprinkle