Ingredients: kumquat, rock sugar, vanilla seed, vanilla.
Exercise:
1. First clean kumquat, cut it in half, and remove the seed stick.
2. Then add water to the boiling pot and heat it. After heating, add kumquat and blanch it, then pour out the water.
3. Repeat twice or so to drain kumquat.
4. Then boil the water again, add a proper amount of rock sugar, and boil and melt the rock sugar.
5. Add the right amount of kumquat, vanilla seeds and vanilla sticks and cook for 30 minutes until the juice thickens.
6. finally let it cool.