String Beans in Azeri Tomato Sauce(Azerbaijan) Recipe - Details, Calories, Nutrition Information | R

Ingredients

• 1 lb of fresh string bean, trimmed
• 4 tbsp butter
• 2 onions , sliced thinly into crescents
• 8 oz tomato sauce
• 2 tbsp of finely chopped fresh basil
• 1 tsp salt
• 1/2 tsp ground black pepper
• 1/4 cup plain yogurt
• 1/4 cup sour cream
• 2 tsp white vinegar (or more to taste)