adapted from Tracey's Culinary Adventures
1 lb green beans, trimmed
1 Tbsp butter
2-3 large red onions
1 chili pepper (1/2 tsp dried crushed red pepper)
1/3 cup red wine vinegar
3 Tbsp dark brown sugar
Salt and pepper to taste
Steam beans until just tender, about 5 minutes. Then transfer to a plate and set aside.
Melt butter in a lager heavy skillet at hight heat. Peel the onion, chop in half and chop again lengthwise leaving you with larger pieces of onion. Saute until onions begin to soften (3-4 minutes). Add vinegar and sugar and stir until sauce thickens, about 2 minutes. Add in beans; toss to coat and heat through, about 1 additional minutes. Season with salt and pepper.