Steak 'n Shake Reese's Peanut Butter Milkshakes contain between 550-900 calories, depending on your choice of option. The option with the fewest calories is the Small/Kids Reese's Peanut Butter Milkshake (550 calories), while the Regular Reese's Peanut Butter Milkshake contains the most calories (900 calories).
Choose from the options below to see the full nutrition facts, ingredients and allergen information.
