01
Get ready
Keep the beef chilled until you are ready to cook. Split the brioche and set out the mature cheddar, crisp lettuce, tomato and sauce so you can assemble the burgers as soon as the patties are cooked.
Gourmet Burger Kit Bone Marrow Smash Burgers
The final steps happen at home.
SCROLL TO EXPLORE
Get ready. Heat, press, sear.
One step at a time, or the whole method at a glance. Set a reminder beside any step, and cook at your own pace. Follow the box for exact cooking temperatures and times.
The method.
0 of 4 complete
02
Heat, press, sear
Heat a heavy frying pan until properly hot, with good ventilation. Place the patties in the pan and press firmly once as they make contact. Leave them undisturbed until a deep brown crust forms underneath, then turn.
03
Cook through and melt
Continue cooking the patties thoroughly. Check the centre with a clean food thermometer: minced-beef burgers should reach 70°C for 2 minutes, or an equivalent safe time-and-temperature combination. Add the mature cheddar towards the end so it melts. Colour alone cannot confirm doneness.
04
Toast and build
Lightly toast the cut sides of the brioche. Layer with lettuce and tomato, add the hot cheese-topped patties and finish with the sauce. Serve immediately.
Everything you need.
- Everything in your Flayvr kit
- The storage and cooking instructions supplied with your box
A note from the Flayvr kitchen
Follow your product label for storage, food-safety and heating guidance. Use a clean food thermometer and check the safe cooking temperature for minced beef; a timer alone cannot establish doneness.
Choose your own timer duration as a reminder only. The online product record does not provide verified time presets. Alarms depend on the browser remaining active. A phone's native timer is safer for anything essential.