What is levain cookie calories?

As an AI language model, I don't have access to the nutritional information of all brands of Levain Cookies. However, Levain Bakery is a popular bakery that sells cookies and their most famous chocolate chip walnut cookie is estimated to have around 400 calories per cookie. Levain Cookies are known to be large and dense in texture, which contributes to their high calorie count. It is always recommended to consume high-calorie treats in moderation as part of a balanced diet.