Place mushrooms with their stalks pointing up, and gently remove. Set stalks aside for Shroom Salt.
Generously season with Shroom Salt (or regular salt) and add 2 tbsp of garlic and thyme oil to the inside of the mushrooms.
Cover with aluminium foil, ensuring to create a seal within which the steam can cook the mushrooms.
Place into a preheated oven at 150°C for 30 minutes.
Remove, cool and place in buttermilk marinade until ready to cook burgers.
Reserve the cooking liquid to replace the Worcestershire for the World's Best Bloody Mary
Pop mushroom stalks in the oven at 80 degrees until dried and combine with table salt in a food processor.
Strip thyme leaves off the stalk, and blitz with garlic cloves and vegetable oil in a food processor.
Combine buttermilk and salt and reserve for drowning the Shrooms
Combine self-raising flour with salt and fresh cracked black pepper.
Combine mayonnaise and hot sauce to taste.
Preheat the remaining vegetable oil in a saucepan to 17°C, ensuring that the oil does not exceed ⅓ of the pot.
Toast the buns until golden and place the toasted sides up.
Place hot sauce mayo on top and bottom of the buns.
Place pickles, then American cheese on the bottom bun.
Remove the mushrooms from the buttermilk and dredge in the seasoned flour until well coated.
Deep fry until golden brown.
Remove and season generously with Shroom Salt and seasoning.
Place the Fried Shroom atop the cheese, nestle the top bun atop.
Recipe by Jake Smyth & Kenny Graham