孜然金沙蟹 Cumin Gold Sand Crab

This is video tutorial on how to cook 孜然金沙蟹 Cumin Gold Sand Crab.
材料：牛油，鴨蛋黃，孜然粉，乾蒜粉，盐，糖，粟粉
Ingredients:
2 Dungeness crabs
2 tbsp butter
4 salted duck eggs
¼ tsp salt
½ tsp sugar
¼ tsp cumin powder
½ tsp garlic powder
Corn starch