Slow Cooker Sweet and Sour Pork

3 cups cubed peeled potatoes (Idaho or Yukon gold)
1 cup chopped onion
3 pound pork roast, trimmed
4 cloves garlic, minced
1 cup water
1/2 cup ketchup
3 tablespoons red wine vinegar
2 tablespoons light brown sugar
2 tablespoons reduced-sodium soy sauce
1 teaspoon Dijon mustard
1/2 teaspoon ground black pepper
Salt

Arrange potatoes and onion in bottom of slow cooker. Place pork on top of potatoes and onion. Spread garlic all over pork.

In a medium bowl, whisk together water, ketchup, vinegar, sugar, soy sauce, mustard, black pepper and salt. Pour mixture over pork.

Cover and cook on LOW for 6 to 8 hours or on HIGH for 3 to 4 hours.

Slice pork crosswise into thin slices and serve 12 ounces for this meal. Serve with all of potatoes, onions, and sauce.