San Francisco Sourdough Bread

Ingredients (10)

• + 4 ¾ cups bread flour add to pantry
• + 3 tablespoons white sugar add to pantry
• + 2 ½ teaspoons salt add to pantry
• + 1 (.25 ounce) package active dry yeast add to pantry
• + 1 cup warm milk add to pantry
• + 2 tablespoons margarine, softened add to pantry
• + 1 ½ cups sourdough starter add to pantry
• ✓ 1 extra large egg
• + 1 tablespoon water add to pantry
• + ¼ cup chopped onion add to pantry