Will you leave a tip for the cook?

The image below is the sign at the front door of Sterling - a restaurant in Washington State, US. 


When you get the cheque, there are two gratuity spaces at the bottom: one for the server and one for the cook. 


Recently, the Washington State has now a $11 minimum wage tip credits. In most states, employers may pay tipped employees less than the minimum wage, as long as employees earn enough in tips to make up the difference. This is called a "tip credit." The credit is the amount the employer doesn't have to pay. However, Washington is one of the few states that does not allow employers to take a tip credit. Employers must pay all employees at least the state minimum wage, whether or not the employees also earn tips. This affects mostly the kitchen staff, who don't receive tips regularly. 

How do you feel about the additional tip line?