Even a poorly executed milkshake still is probably pretty good. But to elevate the classic cool treat to a higher level of indulgence, tips from a milkshake master can help.

For that, we turn to Spike Mendelsohn, veteran of two seasons of Bravo’s “Top Chef” and creator of Washington’s Good Stuff Eatery, which is famous for its milkshakes – including a toasted marshmallow variety.

To help usher in summer, Mendelsohn created a shake for The Associated Press. Inspired by s’mores, that classic campfire treat of toasted marshmallows, graham crackers and chocolate, Mendelsohn picked flavors he hoped would appeal to people all across the country.