2 tablespoons soy sauce
1/4 teaspoon salt
2 drops Tabasco, or to taste
1 garlic clove, crushed

Slice the beef as thin as you can across the grain. Mix the marinade ingredients, put the meat in the mixture and refrigerate for at least 12 hours, 2 days if possible.

Pat the meat dry, and set it on the dryer racks for 2-3 days. Check by snapping a piece.