Is sweet vermouth a good substitute for Sauterne wine in recipe?

Sweet vermouth is not a good substitute for Sauterne wine in a recipe. While both are sweet wines, they have significantly different flavor profiles and purposes:

* Sauterne: A sweet white wine made from Semillon grapes affected by noble rot. It has a complex flavor profile with notes of honey, apricot, and citrus, and a high acidity that balances its sweetness. It's often used in desserts and sauces.

* Sweet Vermouth: A fortified wine flavored with herbs and spices. It has a more bitter, herbal, and often slightly medicinal flavor. It's primarily used as a mixer in cocktails and can also be added to savory dishes for a touch of sweetness and complexity.

The difference in flavor is substantial. Using sweet vermouth instead of Sauterne will likely alter the flavor profile of your recipe in a way you might not prefer.

Here are some better alternatives to Sauterne:

* Other sweet white wines: Moscato d'Asti, Riesling, or even a slightly sweeter Chardonnay could work well.

* White grape juice: This offers a simple sweetness without the complexity of wine.

* Honey: For a more intense sweetness and honey flavor, try using a small amount of honey.

Before substituting, consider the overall flavor profile of your recipe and the desired level of sweetness.