Backslash Burger
Half beef \ half bacon smashburgers in Frederick, MD. Premium ingredients. No shortcuts.
[Formerly Fifty Fifty]
06/17/2026
Do you know what you’re having for dinner? If you’re just starting the nightly debate, it’s your sign to swing by Backslash for a double smash and some onion rings.
Available for dine-in, takeout, or delivery. Open until 10PM.
See you under the neon lights! ✨
Smashburgers and fries are waiting for you all week, 11AM to 10PM.
06/13/2026
Saturdays are better with smash burgers, Old Bay fries, and a cold pour from our friends at Olde Mother Brewing.
Whether you’re coming by to hang inside or on the patio (pups welcome outside!), thinking of takeout or delivery via the major apps, we’re here for all for all your cravings.
Saturday 11AM to 10PM | Sunday 11AM to 7PM
New week. Full send.
Whether you're tackling meetings, chasing deadlines, driving kids to practice, or just trying to make it to Friday, start the week with a burger worth looking forward to.
🍔 Open Monday-Saturday 11AM to 10PM | Sunday 11AM to 7PM
🔥 Backslash Sauce bottles available to-go
Let's do this.
06/05/2026
Weekend checklist:
☑️ Backslash Burger
☑️ Fries
☑️ Cold drink
☑️ Bottle of Backslash Sauce for the fridge
We’re here all weekend:
Friday & Saturday | 11 AM–10 PM
Sunday | 11 AM–7 PM
Take the sauce home. Thank us later.
05/23/2026
Let us make dinner plans easy tonight! We’re open today (Saturday) until 10PM for dine in, take out, or delivery through the major apps so you can stay cozy and dry at home.
Remember, when you order through our website, you get the best price on delivery fees.
We're over here clapping because it's almost a long weekend and the start of summer! Make us part of your Memorial Day weekend plans and visit Friday/Saturday 11AM to 10PM, Sunday 11AM to 7PM, and Monday 11AM to 10PM.
Yes, we'll be open regular hours on Memorial Day (Monday, 5/25), so come by and enjoy!
05/16/2026
Cheers to the weekend and patio weather! ☀️
Saturday 11AM-10PM | Sunday 11AM-7PM
Come by for all of your favorites and even bring along your dog! The patio is pup friendly.
05/12/2026
Dinner plans? Solved. Meet The Ogre: stacked with Tiger Sauce, caramelized onions, raw onions, and beer-battered onion rings for the perfect mix of sweet heat and crunch.
This is the kind of burger you need two hands and extra napkins for.
Visit us M-Sa. 11AM to 10PM and Su. 11AM to 7PM. Also available for delivery through the major apps.
05/08/2026
That sauce drip should tell you everything you need to know.
Backslash Sauce is available by the bottle for $7 so you can take the tangy chipotle magic home with you. Grab a bottle this weekend when you’re at Backslash Burger and keep your fridge stocked accordingly.
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Address
526 N Market Street
Frederick, MD
21701