In a Dutch Oven melt the oil.
Salt and pepper the round steak and cut into 4 oz. pieces.
Cook the round steak on each side for about 2-3 minutes per side.
Remove the round steak from the Dutch Oven.
Add the onions and garlic to the Dutch Oven and sauté.
Add the apple cider vinegar and balsamic to the Dutch Oven.
Add the tomatoes and tomato paste and stir.
Simmer until thickened for about 10 minutes.
Add 1 tsp. Salt and ½ tsp. Pepper to taste.
Place the round steak back into the Dutch Oven, covering with the sauce. (Optional: add olives and pepperoncini to the pot for color and an extra twist.)
Place the lid on the Dutch Oven and bake at 350 degrees for 1 1/2 hour.