We prepared this quickly using Lobo Namtok Seasoning Mix. We also have a recipe to make Namtok from scratch. Namtok means 'waterfall' in Thai so this is waterfall beef. You may also be interested in our Mama Namtok instant noodles.
Be sure to use fresh shallots which are really important to this recipe.
Place a medium-sized rump roast on a cutting board and lightly cover with salt and crushed black pepper. Also lightly sprinkle with fish sauce. Place on a pan and cook at low (200F) heat in your oven for about 3 hours until cooked through.
Optional: Keep the oil that gathers in the pan, and add a tablespoon back into your Namtok when mixing later.
Slice your roast to get about 3/4 pound of cooked beef, as shown.
In a bowl, mix beef and about 3/4 of the package of Lobo Namtok mix (use all if desired, for spicier taste). Add fish sauce to taste, and shallots.
For the mint leaves, we chopped some with a knife and added that to the mix, and topped the salad with a few whole leaves at the end.
Serve on a bed of fresh lettuce with fresh green beans. Use the lettuce as small wraps for a bundle of the spicy beef.