Fond of Betty's Burgers and its Shake Shack-style burgs? Keen to share the love with someone you love? On Thursday, October 24, the chain of eateries wants Sydneysiders to come in for a bite — and to bring their besties in as well.

To mark the first ever Betty's Bestie Day, the brand's new Sydney joint will be serving up two-for-one burgers. Pay $10 for a Betty's Classic — which stacks angus beef, lettuce, tomato, onion, cheese and Betty's special sauce on a soft bun — and you'll score a pair of them.

The two-for-one offer also applies to the $11 crispy chicken burger — with southern-fried chicken, lettuce, tomato and special sauce — and Betty's new limited-edition lobster roll, which'll set you back $19 for two.

If you're can't wait till Thursday to snag a burg, head to head to one of Betty's six Sydney stores in Bondi Junction, Castle Towers, Darling Harbour, Manly Wharf, Mount Street and the new Market Street store.

The two-for-one deal is available from 11am until 10pm (or sold out), so if you and your favourite fellow burger fiend are especially eager, you could always hit up one for lunch and another for dinner.