Butternut Squash & Caramelized Onion Galette

Source: Smitten Kitchen Ingredients 1 1/4 cups all-purpose flour 2 teaspoons kosher salt, divided 10 tablespoons unsalted butter, divided 1/4 cup sour cream 2 teaspoons lemon juice 1/4 cup ice water 1 butternut squash 2 tablespoons olive oil 1 sweet onion Cayenne and black pepper, to taste 3/4 cup fontina or mozzarella cheese, shredded Instructions… Read.