What is Cucumber?
Cucumber is a software tool that supports behavior-driven development (BDD).

What is BDD?
BDD bridges the gap between business stakeholders and the technical team through a common platform. Hence, communication among the team becomes more transparent.
Gherkin is being used as the language in which the test cases are written in a simple format and can also be read and modified by a non-technical user.

Please see the below blog for complete detail (Step By Step)
https://kailash-pathak.medium.com/how-to-grow-cucumber-in-cypress-in-just-10-steps-21c5a086b929

Please see the below VIDEO for complete implementation (Step By Step)

https://youtu.be/-ptgxtb3xVs