I cheated! I admit it! I used BBQ marinade from a bottle, and it tasted SO GOOD. I should have bought the chili dipping sauce to go with it because I didn't have all the ingredients at home. So no recipe, just a tip: use thinly sliced fatty beef. A cut with a lot of marbling is best. It's a little pricey but you don't need much. It makes all the difference.