James Beard’s Sourdough Rye Bread

Name: James Beard’s Sourdough Rye Bread
Cuisine: American
Ingredients: 2 cups rye flour; 1 package active dry yeast; 2¼ cups lukewarm water; 2 teaspoons salt; 1 tablespoon caraway seed; 1½ teaspoons poppy seed; 2 tablespoons melted butter; 3 tablespoons granulated sugar; 4 cups all-purpose flour; Butter and cornmeal, for the baking sheets; Butter and cornmeal, for the baking sheets; Butter and cornmeal, for the baking sheets; 1 egg lightly beaten with 1 tablespoon water, for egg wash; 1 egg lightly beaten with 1 tablespoon water, for egg wash; 1 egg lightly beaten with 1 tablespoon water, for egg wash