Fry the Fry's Big Fry Burger until well browned and cooked. Spread plant-based butter over the rolls, if using.
Add the basting sauce to the burgers while cooking to coat. To assemble, layer the topping and the burgers between the rolls, finishing off with a squeeze of tomato sauce.
Combine the plant based yoghurt, grated cucumber and lemon juice. Assemble the burgers starting with rocket, the yoghurt mix and topped with crispy onions.
Fry the mushrooms until softened and browned.
Use 1 Tbsp milk to make a slurry with the cornflour.
Add the soy sauce, plant-based milk and cornflour slurry and stir until it starts to thicken. 4. Adjust seasoning to taste and assemble the burgers.
Enjoy with your choice of fries or sweet potato fries.