Marsala Wine delivers a flavor, that is hard to match. But if you want to avoid adding alcohol, here are a few options, Add a combination of 1/4 cup of white grape juice. 1 tablespoon vanilla extract and 1 tablespoon of vinegar. Add a combination of 1/3 cup of grape juice and 1 teaspoon of brandy. You can even use Dry Dark Sherry. Port Wine or a combination of dry white wine and cooking sherry