Makes 1 loaf INGREDIENTS 2 tablespoons unsalted butter (softened), plus 2 more tablespoons for top of dough 3½ unbleached bread flour ½ cup warm water (100°F) 1⁄3 cup sugar ¼ cup milk (warmed, 100°F) 2 teaspoon salt 2 teaspoon active dry yeast 2 large eggs, lightly beaten 1 egg yolk, for egg wash PREPARATION Spray…