1/4 cup sugar
1/4 cup rice wine vinegar
1 1-inch ginger root, peeled and thinly sliced
2 tablespoons vegetable or other light oil
1 red onion, chopped
2 small red chili peppers, very thinly sliced
1/4 pound shiitake mushrooms, stems removed and chopped
4 cloves garlic, chopped
1 1/2 pounds medium shrimp, deveined, tails off
Salt and freshly ground black pepper
1 head iceberg lettuce, cored and quartered
Combine the sugar, vinegar and ginger in a small pot and bring to a boil. Dissolve the sugar and turn off the heat; reserve.
In a skillet, heat the oil over medium-high heat. Sauté the onions, chili peppers, mushrooms and garlic for 3-4 minutes, then add the shrimp and toss for 3-4 minutes more until pink and firm. Douse the pan with the sweet vinegar and season with salt and pepper, to taste. Serve with cold lettuce for wrapping the hot-sweet shrimp.