Restaurant
300 Grams
203 High St, Prahran VIC 3181, Australia
Find 300 Grams
203 High St, Prahran VIC 3181, Australia
Directions ↗*Opening hours may differ during holidays.
Book NowAbout 300 Grams
High Street regulars skip the chains for this counter—beef smashed hard with onions seared directly into the flip side, tucked into a bouncy white bun. The signature 300 GS dials in the balance, pairing charred crust and tart pickles without the usual grease-trap aftermath. For heat, the Hot Bird lands southern-fried chicken under housemade hot sauce and chilli mayo, best offset by seasoned thick-cut chips and an Oreo thickshake.
- Onion-Smashed Patties: Patties get pressed thin with sliced onions seared directly into the flip side for deep, charred edges.
- The Hot Bird: Southern-fried chicken drenched in housemade hot sauce and chilli mayo on a soft white bun.
- Thick-Cut Chips & Shakes: Generous baskets of thick-cut chips tossed in savory seasoning, paired with cold Oreo thickshakes.
- Tight, Focused Menu: A tight, compact menu centered on balanced execution and crisp produce rather than chain gimmicks.
What's On at 300 Grams
Upcoming events, special menus and other reasons to plan a visit.
No events or specials listed right now.
Why 300 Grams Leads High Street's Burger Scene
Discover why Prahran patty purists crown 300 Grams an elite smashburger destination—book your table now.
Onion-Seared Smash Patties
Patties are smashed hard onto the flat-top with thinly sliced onions seared directly into the flip side, creating caramelized edges paired with soft, bouncy buns and fresh toppings.
They are smash style burgers cooked with onions on the flip side.
timyee88 “TimYee76” Curated, Focused Menu Execution
Rather than an overwhelming menu of dozens of variations, a tightly curated roster ensures each burger achieves ideal flavour balance, fresh crisp greens, and perfect proportions.
I looked over their menu and it’s smaller than the rest but I think that allows them to do burgers very well.
TF Unfiltered Burger Bliss
The combination of deeply charred, crispy edges, juicy beef, and warm toasted buns provides an immediate sense of pure comfort and satisfaction.
Every bite is just pure happiness.
Ronald Loh Decadent, Saucy Indulgence
Generously stacked ingredients and rich, tangy house sauces deliver a messy, decadent, and thoroughly indulgent burger experience.
Really good burgers especially if you want it drippingly good.
Jeremy Matthew Thoughtful, Attentive Hospitality
Attentive front-of-house staff bring genuine care and warmth to every interaction, making dining in or picking up completely effortless.
gave great service and made the whole experience really enjoyable
oscar newton High-Energy Local Vibes
High-energy tunes and an enthusiastic counter crew create an infectious, welcoming neighbourhood buzz on High Street.
People working are such a great crew! Will be coming back for another PHat burger and good vibes :)
Joshua Allport
Most popular items
Customer favorites from the smashburger griddle and fryer
300 GS
Everything was super crunchy and fresh—there’s nothing worse than biting into warm, soggy lettuce. We were also pleasantly surprised by how soft and bouncy their white bun was.
Bitesized Diary Thick-Cut Fries
They’re perfectly crispy and generously portioned!
Bitesized Diary Hot Bird
If you like your burgers with a bit of a kick, try their Hot Bird with southern fried chicken and chilli mayo. They weren’t kidding when they said it’d be dripping in housemade hot sauce.
Bitesized Diary Oreo Thickshake
Having been to all other locations, I feel so honoured to know that I had the first ever Oreo Thickshake at this store!!!!
Bertan Kaya
Before you head over
Key dining and ordering advice for your visit to Prahran's smashburger heavyweight—book your table or party catering today.
Order Direct for Seamless Customisation
Order directly through the restaurant's website for takeaway to easily tailor your meal; the online system features straightforward tick boxes for substituting sauces like mayo for tomato sauce.
Pick Up or Dine In Fresh
Third-party app couriers frequently introduce transit delays that leave burgers and fries lukewarm; picking up directly or dining in ensures you catch the onion-smashed patties and bouncy buns at peak crispness.
Request Light Salt on Thick-Cut Chips
The generously portioned thick-cut fries arrive heavily coated in house seasoning; if you are sensitive to sodium, ask the counter staff for light salt when placing your order.
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