1 (12 ounce) can 7-Up or ginger ale
1 1/2 tablespoons soy sauce
1 tablespoon minced green pepper
1 tablespoon minced onion
1 teaspoon fresh lemon juice
1 teaspoon granulated sugar
1 clove garlic, minced
1 (4 pound) center-cut pork roast

In a heavy cooking bag or 9-inch square glass baking dish, combine the 7-Up, soy sauce, green pepper, onion, lemon juice, sugar and garlic. Add the roast and seal the bag (if using). Refrigerate overnight, turning the roast three or four times if possible.

Preheat the oven to 325 degrees F.

If using the cooking bag, place in a baking dish or a roaster. Cut a 1/2-inch slice in the top side of the cooking bag. If using a baking dish, place the roast and marinade in the dish and complete the same process as if using cooking bag. Bake for 1 hour 45 minutes to 2 hours.

When roast is done, pour the juices from the roast into a 1-quart saucepan. Prepare Gravy.

Gravy
2 tablespoons water
2 tablespoons flour

In a small bowl, stir together the flour and water. Stir into the pan with the juices. Bring to a boil over medium-high heat. Serve the gravy over ham and on mashed potatoes.