Question: what fast food restaurants have the best milkshakes?
Answer: Steak 'n Shake. Overall, Chick-fil-A and Steak 'n Shake were close contenders for the number one spot.
Chick-fil-A. PIN IT. ... 
Dairy Queen. Dairy Queen is a definite chain favorite. ... 
Sonic Drive-In. ... 
Burgerfi. ... 
Burger King. ... 
Shake Shack. ... 
Arby's. ...