Heat stock in nonstick saucepan over medium heat. Add flour and onion; blend with a wooden spoon or whisk. Simmer over low heat for several minutes, stirring constantly. Do not allow to brown. Remove from heat, add milks, bay leaf, thyme, white pepper, and vegetable seasoning. Return to heat, stirring constantly until mixture coats the spoon.

If desired, add wine and simmer 5 minutes more to evaporate alcohol. Remove onion and bay leaf.
Cover and store until used, or place in an airtight container and refrigerate for several days, or freeze for future use.

Serving Suggestions: This sauce be used over 8 cups of steamed vegetables such as broccoli florets, diced potatoes, quartered mushrooms, peas, asparagus, or sliced carrots.

To serve, place vegetables in a shallow ovenproof serving dish. Drizzle sauce over vegetables, sprinkle with 2 Tbsp. Sap Sago cheese or with Hungarian paprika and place under broiler to brown lightly before serving.