How to make sausages bought in supermarkets taste better?

Wash sausage and cut it into thin slices, wash celery and cut it into long sections, prepare shredded onion and shredded ginger, then cut garlic cloves, add water to the pot until bubbles appear, add salt and cooking oil, stir celery with a colander to heat it evenly, blanch it for one minute and then take it out, then blanch the sausage, add oil to the hot pot, add onion, ginger and garlic, and stir-fry until fragrant.