Step 2: Stir-fry onion, ginger and garlic, leaving garlic leaves.
Step 3: Add the fat sausage.
Step 4: Except vinegar and beer, all other ingredients are put into the pot and stir-fried.
Step 5: add beer, turn down the heat, and add a little vinegar after duck blood tastes.
Step 6: thicken the pot.