Wash vegetables and ingredients with water before using to cook

Cut the beef tenderloin into cubes of your preferred thickness

Move the beef into a separate bowl and add the marinating ingredients, coating each piece well and set aside

While waiting, slice tomatoes, slice lime wedges into quarters, and chop onions into thin slices

Using a mortar and pestle, grind your desired amount of Kampot pepper

On a plate, lay out your pieces of lettuce, tomato slices and add a scope of cooked rice

In a sauce bowl, combine your Kampot pepper, a pinch of local salt, and squeeze some lime juice, stir until well mixed

Pour 1 tablespoon of vegetable oil into a pan on medium heat

Pour the marinated beef into the pan, add a pinch of Kampot pepper and onion slices to taste, stir around until the beef is cooked to your desired level (medium is best!)

Serve your beef lok lak on top of your lettuce, the beef can be dipped into the sauce (tek merec) or poured on top !!!