1. It's actually very simple to use fresh prawns as a supplementary food for your baby. First, go to the market to buy fresh prawns. Choose transparent blue prawns, which will be fresher. Don't buy red prawns.

2. Clean the bought prawns, then pinch the tail, remove the shrimp shell and leave only the middle shrimp meat, and then pick out a black substance on the back of the shrimp meat with a toothpick. This is shrimp line, that is, the intestines of prawns, which must be removed.

3. Then put the cleaned shrimps into a dish, add a proper amount of onion and ginger slices, and put them on top of the shrimps. Add a proper amount of water to the steamer, put a small bowl on the steamer, then steam for 20 minutes on high fire and turn off the heat.

4. After the small bowl is out of the pot, pick out the ginger slices and onion segments, and then put the shrimp meat into the cooking machine to make shrimp sauce, which can be fed to the baby. Remember, don't add any seasoning or salt to the shrimp meat, because the shrimp meat itself will contain some salt to meet the baby's physical development needs at this stage.