Kiwi Beef Stir Fry

Ingredients:
Thinly sliced beef
Kiwi (fruit)
Olive oil
Vinegar
Salt
Sugar
Soy sauce
Mushrooms
Snow peas
Cornstarch
Water
Rice

I made a marinade of finely chopped kiwi pieces, olive oil, white vinegar, sugar, and salt. I added the thinly sliced beef to this and refrigerated for about an hour. I then cooked the beef with the kiwi marinade in a frying pan until all of the beef slices were cooked. There was a lot of liquid in the pan. In a separate pan while I did this, I cooked sliced mushrooms and snow peas with some soy sauce until they just started to get limp (but the snow peas were still a bit crunchy). I then added the beef mixture to the veggies and simmered this until some of the liquid was gone and just enough was left to make a nice stir fry sauce. I mixed a small bit of cornstarch and water in a small bowl, and then quickly stirred that into the stir fry until the sauce was thickened. I served this over basmati rice with additional soy sauce. Kiwis (and pineapples) have some sort of enzyme in them that break down proteins and make meat very tender. I think when I do this again, I won't even bother to let the beef sit in the marinade, I'll just cook it in the sauce. It would also be interesting to try this with pineapple instead of kiwi.