Ingredients 材料： 600 grams prawns 600克 蝦 2 tablespoon tamarind paste 2湯匙羅望子醬 1 tablespoon brown sugar 1湯匙紅糖 60 ml water 60毫升水 4 tablespoon cooking oil 4湯匙食用油 1/4 teaspoon sweet dark soy sauce 1/4 茶匙 老抽 season with salt and sugar 加鹽調味和糖 6 cloves garlic 6瓣大蒜 2-3 slices ginger 2-3片姜 3 shallots 3 個小洋蔥 2 small red onions 2個小紅洋蔥