I marinate as follows:
1/3 cup canola oil
1/3 cup soy sauce
3 Tablespoons Red Wine Vinegar
1 tsp garlic powder
3 Tablespoons Chutney
Cover meat and let it "sit" for at least 4 hours. Overnight is fine, too. I put it in the refrigerator and turn the container over every time I open the door. It is delicious!
Bake at 300 for about 1 hour a pound.