Storage: Boston Brown Bread keeps well wrapped in plastic wrap or foil at room temperature for up to 5 days. It can also be frozen for longer storage.
Reheating: If serving leftovers, re-steam the loaf for 15-20 minutes to restore moisture and warmth.
Substitutions: If you don't have buttermilk, you can substitute sour milk or add 1 tablespoon of lemon juice or vinegar to 2 cups of regular milk and let it sit for 5 minutes.
Variations: Try adding 1/2 cup of chopped walnuts or pecans for extra crunch and flavor.