|Vegetable cooking spray||1|
|Olive oil||1 Tablespoon|
|Purple onions||3 Large, thinly sliced and separated into rings|
|Plain non-fat yogurt||16 Ounce (2 Cartons Of 8 Ounce Each)|
|Balsamic vinegar||1 Tablespoon|
|Freshly ground pepper||1 Dash|
Coat a large nonstick skillet with cooking spray; add oil.
Place over medium-high heat until hot.
Add onion and sugar; saute 10 to 15 minutes or until onion is tender, stirring mixture frequently.
Reduce heat to medium-low, and cook 20 to 30 minutes or until onion is golden brown, stirring occasionally.
Remove from heat, and let cool completely.
Spoon yogurt onto several layers of heavy-duty paper towels; spread to 1/2-inch thickness.
Cover with additional paper towels; let stand 5 minutes.
Scrape into a bowl, using a rubber spatula.
Add vinegar and salt, stirring well.
Stir in onion mixture.
Transfer to a serving bowl, and sprinkle with pepper.