1.

Eat it all. Whether it is salty or light, you can eat it clean. Don't say much, just say delicious. ...

2.

Try to pick her favorite dishes. Everyone has a preference, try to choose those dishes she likes. ...

3.

Praise in front of friends at the right time. Sometimes when she and your friends praise her cooking, don't overdo it, just say it's good. ...

4.

Invite friends to dinner at home at the right time. If a friend comes to visit, you can stay at home for dinner and let your wife cook at the right time. ...

5.

You can buy some recipes. When you go to a supermarket or bookstore, you can bring back one or two cookbooks and put them in the kitchen. ...