Mix some olive oil (about 1 TBSP) with salt, pepper, garlic, rosemary and basil. Rub it all over the brisket and refrigerate for at least 4 hours, overnight preferably.
Warm up some oil in a large heavy skillet and fry the beef. When it starts to brown reduce heat, add a little bit of water, about 1/4 cup, and cover. Let it cook for about 25 minutes.
Refrigerate for about 2 hours before shredding it.
Mix all the dressing ingredients.
In a big bowl mix the shredded beef, tomato, onion, radish, pepper and cilantro with the dressing.
Serve over lettuce leaves on a platter and arrange avocado wedges on top.
You can serve the salpicon as a salad, side dish or over tostadas spread with refried beans.
Recipe by What's Cooking Mexico at http://whatscookingmexico.com/2011/06/16/salpicon/