meteorcall.js

cy.window().then((win) => {
  return new Cypress.Promise((resolve, reject) => {
    win.Meteor.call('create',
      {
        title: 'Test'
      },
      (err, res) => {
        if(res) {
          resolve(res)
        } else {
          reject(err)
        }
      }
    )
  })
})