To a pan, add water and boullion powder/cube. Stir until it dissolves fully.
Then, add garlic powder, soy sauces, Worcestershire sauce, coconut sugar, black pepper. Mix well and bring the mixture to a boil.
Add the corn starch and keep stirring until no lumps are found. If the sauce is too thick, add a splash of water little by little until you reach your desired consistency.
Once that's done, add some salt according to your taste preference.
Meanwhile, defrost your beyond meat patties. I fry these patties without any oil but you can lightly spray some oil onto your pan and place the patties.
Press the patty on both sides to get the char and cook thoroughly.
While the patties are cooking, spread some vegan butter and toast the buns.
Set it aside and spray some oil into the pan again. Make sure the oil is evenly spread across the pan. Pour in your vegan egg mixture.
Place the Beyond Meat in the centre and a slice of vegan cheese on top. Cover the pan with a lid.
After about 2-3 minutes, the egg should be cooked. Gently scrape the sides of the egg and fold it on the burger patty.
Slather some black pepper sauce on the bun. Place this egg-vegan patty on top.
Add more black pepper sauce on top. Drizzle generously with vegan mayo and sriracha. Cover with the other bun and you have the perfect drool-worthy burger!