1. Chop pork, dice onion, chop garlic, blanch tomatoes in boiling water for 20 seconds, peel and mash.

2. Cut the butter into pieces and put it in a pot to melt.

3. Add onion and garlic and stir fry for a while.

4. Add pork stuffing and stir fry.

5. Stir-fry the pork stuffing until it turns white.

6. When the pork stuffing turns white, add tomato sauce.

7. Stir fry for a while, add tomato sauce, sugar and salt, and collect the juice over high fire.

8. Sprinkle some black pepper and you can cook. If you can't eat it all at once, you can put it in a sealed bottle for refrigeration.

9. If you mix spaghetti, you can add some water to dilute the sauce.