Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1      teaspoon      salt
     1/4  teaspoon      pepper
   1      tablespoon    chili powder
   1      teaspoon      onion powder
     1/4  teaspoon      cumin -- ground
   1      teaspoon      garlic powder

Preparation:

Mix the ingredients and rub onto thinly-sliced beef. Dry in oven overnight.