Mixed-Berry Galette - Ellie Krieger

Ingredients

• 1 cup whole-wheat pastry flour
• 1/8 teaspoon salt
• 1 tablespoon olive oil
• 1/4 cup honey, or more as needed
• 4 tablespoons (1/2 stick) cold, unsalted butter, cut into small pieces
• 3 tablespoons ice water
• 4 cups mixed berries, cut as needed (strawberries, blueberries, raspberries, blackberries)
• 1 tablespoon balsamic vinegar
• 2 tablespoons cornstarch