The Best Sourdough Sandwich Bread recipe yields a perfectly soft, tender interior, this recipe results in the ultimate sourdough sandwich bread perfect for breakfast toast, sandwich masterpieces, or simply enjoyed on its own slathered with butter, jam, or Creamy Apple Butter. Because of the fermentation, sourdough bread is also commonly known as a healthier option that holds more nutrients and allows for easier digestion thanks to its lower glycemic index and lower levels of gluten.