*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.
**Nutrient information is not available for all ingredients. Amount is based on available nutrient data.
(-)Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.
Stir the flour and 1/4 cup of the milk together in a saucepan until no lumps remain. Stir in the remaining milk and sour cream. Bring to a simmer over medium-high heat, then reduce heat to medium-low, and simmer for 15 minutes. Add the green beans, and cook until tender, about 5 minutes. Stir in the vinegar, and season to taste with salt before serving.