Step 1

For the beef, prepare the fillet by flattening it with a meat mallet or rolling pin, or cut it in half horizontally. Cut into wafer-thin slices.

Step 2

For the wasabi mayonnaise, mix all of the wasabi mayonnaise ingredients together in a small bowl. Set aside.

Step 3

For the spicy coating, mix all of the coating ingredients together on a plate. Roll the beef slices in the spice mix, then shake off any excess.

Step 4

Heat a wok until smoking and add the groundnut oil, then add the beef and stir-fry for one minute, or until browned. Add the rice wine and season with the soy sauce and a pinch of salt. Remove from the heat and stir in the coriander and spring onion.

Step 5

To serve, wrap the spicy beef in the tortillas and top with the wasabi mayonnaise. Serve immediately.