First of all, you need to know what the residents nearby usually buy there.
If you sell oil, the price of your oil should be the cheapest in the nearby grain and oil store.
As long as there is oil, it is the cheapest signature product, and ordinary domestic chefs will often buy it.
You'd better take a blackboard.
Write a recipe that matches the products you sell. Write a cookbook every day, telling how to make it, what ingredients are needed, and what nutrition is suitable for who to eat. You will know your reputation by publicizing it more. Many people will spread their business and do it long and well.
According to my method, you try it first and see the effect.
Understand the customer's reaction in improving methods.
I have other methods and ideas.
Please contact me directly if you have any questions.
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I wish you success!