Kaifeng and Lankao are two cities located in Henan Province, China, which are rich in food culture. The following are some food recommendations of Kaifeng and Lankao:

1. Kaifeng snacks: Kaifeng is a famous historical and cultural city in China with rich snack culture. Among them, Kaifeng steamed buns, Kaifeng vegetables, Kaifeng roast duck and Kaifeng soup steamed buns are all famous foods.

2. Lankao Snacks: Lankao City is located in the middle of Henan Province. It is a beautiful city with rich food culture. Among them, Lankao roast duck, Lankao roast chicken, Lankao beef soup and Lankao stinky tofu are all famous foods.

3. Kaifeng specialties: Kaifeng specialties include Kaifeng steamed buns, Kaifeng vegetables, Kaifeng roast duck, Kaifeng soup steamed buns, etc., all of which are famous delicacies in Kaifeng.

4. Lankao specialties: Lankao specialties include Lankao roast duck, Lankao roast chicken, Lankao beef soup, Lankao stinky tofu and so on, all of which are famous delicacies in Lankao city.

To sum up, Kaifeng and Lankao have rich food cultures, and both snacks and specialty dishes are worth tasting.