Heart-Healthy Barbecue Sauce

My family and I are spending some time with my parents trying to help them out following my dad's quadruple bypass surgery. I've been busy dreaming up heart-healthy (low fat, low/no sodium, and no sugar) recipes. One of our favorites is homemade barbecue chicken pizza (which we make with whole wheat flour), so I tried to find some good heart-healthy barbecue sauce at the grocery store to no avail. I searched for some recipes and based this recipe off of several of those. It is delicious, and I can't wait to have this on our pizza for dinner!

Heart-Healthy Barbecue Sauce

1/4 white onion, finely chopped

1 small can tomato paste

Diet Coke (I filled the tomato paste can twice to measure)

2 Tablespoons heart-healthy ketchup

2 Tablespoons red wine vinegar

1 Tablespoon mustard

1 Tablespoon fresh lemon juice

1 tsp minced garlic

2 tsp worchestershire sauce

a shake or two of your favorite Mrs. Dash

In a skillet over medium heat, saute the onion in olive oil until translucent. Add the rest of the ingredients, and stir to combine. Simmer over low heat for 15-20 minutes until the flavors combine and the sauce thickens slightly. Add more of your ingredients to taste.