Before leaving the restaurant, Maria asked her server if she could have one of each sauce available. She ended up getting hot sauce, ketchup, mayonnaise, mustard, barbecue sauce, and relish.
When Rachel made the same request at her store, she received hot sauce, mustard, barbecue sauce, A1 steak sauce, and packets of mayonnaise — sides of ketchup were self-serve.
Maria reported some big differences in the servings of each sauce. Hot sauce and ketchup were given the biggest portions, as both weighed 39 grams, she said, whereas the relish came out to around 19 grams and barely filled half of the small serving cup.
Rachel's sauces came a bit more evenly distributed, most of which filled the containers at least halfway.
While it was left out of Maria's order, Five Guys in the UK does offer a steak sauce, but the brand they use is called HP sauce. Similarly, the two locations use different brands of barbecue sauce: McCormick in the UK and Cattlemen's in the US.
The most important thing to note here is that regardless of the differences, all sauces were free at both locations.