What Is an Oklahoma Fried Onion Burger?
Also known as a “slinger” or “battered burger” in local diner slang, the Oklahoma onion burger is more than a meal — it’s a tradition.
Born during the Great Depression, when meat was expensive and onions were cheap, cooks in towns like El Reno stretched ground beef by mixing finely chopped onions right into the patty — then smashing it thin on a hot griddle.
The result?
A burger that’s juicy inside, ultra-crispy outside, and packed with sweet, savory onion flavor in every bite.
The Signature Traits:
Thin, smashed patties
Maximizes surface area for that golden sear
Onions cooked right into the meat
Not just a topping — they’re part of the patty
Caramelized, crispy edges
Where beef and onions fuse into flavor gold
Served simple
Soft bun, mustard, ketchup, pickle — nothing extra
This isn’t gourmet.
It’s griddle-born, grease-splattered, deeply satisfying.
And it’s one of the most delicious things you’ll ever eat.
How to Make an Authentic Oklahoma Fried Onion Burger
Ingredients (Makes 4 Burgers)
Ground beef (80/20 blend)
1 lb (450g)
High fat = better crust
Yellow onions, finely chopped
2 medium
Sweetness and texture
SEE NEXT PAGE
ADVERTISEMENT
ADVERTISEMENT
