Cookout Peanut Butter Banana

It costs $2.79. Prices come from live ordering menus and move a few cents between cities, so treat that as the going rate and confirm at your restaurant.

864 calories, which puts it above the milkshakes average of 693. Add it to the nutrition calculator to total a whole order.

864 calories with 27g protein, 43g fat, 99g carbs and 669mg sodium. Full figures sit in the table above.

The Peanut Butter Banana at $2.79. It is the lowest priced of the 36 items on the milkshakes menu.

Cookout does not publish a topping list for this one, so the build varies slightly by restaurant. Ask at the window if you want it plain or with extras, since nothing is added by default beyond the standard build.