1/3 c. soy sauce
1/2 c. red wine
2 tsp. garlic powder
1/4 c. olive oil
Juice of 2 lemons
1 pkg. meat tenderizer

Marinade 2 to 6 hours or overnight. Let roast (7 pound) reach room temperature, rub with 1 package of meat tenderizer. Pour marinade back over and let sit 20 minutes. Bake at 350 degrees for 15 minutes. Lower heat to 300 degrees and bake for 1 hour, turn off and leave in oven for 3 hours.