1. Prepare the required materials
2. Peel the yam and soak in clean water, then pour a little white vinegar and soak for 15 minutes
3. Put the soaked yam into the steamer
4. Turn on high heat and steam until the yam is cooked through
5. Finally, take it out and pour blueberry jam on it and serve
Tips:Soaking yam with vinegar can make the yam change its color and whiten it. It can also be soaked in dilute salt water to prevent oxidation.
