Cut the beef striploin and firm fat layers into appropriate sizes to ensure a fat ratio of at least 20%, then grind coarsely using a meat grinder.
Divide the ground meat into 200-250g portions and shape them into patties gently, without kneading or pressing them hard like tteok-galbi.
Season the thick patties evenly with salt and pepper on both sides.
Place the patties in a zipper bag, remove as much air as possible using water displacement, seal, and cook in a sous vide water bath set to 57 degrees Celsius for 2 hours and 30 minutes.
While the sous vide is in progress, slice the tomatoes, cut the romaine to fit the bun size, and toast the inside of the hamburger buns in a pan with melted butter.
Once the time is up, carefully remove the sous vide patties and pat the surface completely dry with paper towels.
Place the patties in a pan heated until smoking hot and quickly sear the surfaces to create a crispy crust.
Stack the romaine lettuce, tomato, patty, and cheddar cheese on the toasted bun, and finish by adding barbecue sauce or sriracha sauce to your preference.
Coarsely grind striploin with fat, shape into patties lightly to keep air pockets, and season with salt and pepper.
Place patties in a zipper bag and cook sous vide in a 57-degree water bath for 2 hours and 30 minutes, then quickly sear the surfaces in a hot pan.
Assemble the burger by stacking the patty with prepared vegetables, cheese, and sauce between butter-toasted buns.
Cooking tips 💡
Do not knead the patties strongly when shaping; keeping air gaps between the meat particles prevents the texture from becoming tough and allows it to retain plenty of juices.
During sous vide cooking, the air pockets in the patty may cause the zipper bag to float, so use a heavy spoon or tool to weigh it down so it is fully submerged for even cooking.
It is excellent even without basic sauces to enjoy the natural flavor of the meat, while sweet barbecue sauce adds a classic harmony and sriracha sauce adds a spicy kick suited to the Korean palate.
Recommended for 🙋
⭐Those who want a handmade burger with overwhelming moisture and tenderness that is on a different level from typical grilled patties.
⭐Those who want to recreate a professional restaurant-quality, high-end beef patty dish using a sous vide machine.