Beef Stew in Berbere Sauce without seasoning

2 lbs beef flat iron steaks 1 tablespoon butter 2 tablespoons olive oil salt pepper 1 cup finely chopped onion 1 tablespoon finely chopped garlic 1 tablespoon[...]

1 lb beef stew meat , tenderized 1/8 teaspoon salt 1/8 teaspoon pepper 1/8 teaspoon onion powder 1/8 teaspoon garlic powder 2 tablespoons extra virgin olive[...]