Tangy Slow Cooker Flank Steak

Tangy Slow Cooker Flank Steak
Nonstick cooking spray
1 beef flank steak (about 1 1/2 pounds)
1 tsp oil
1 lg onion, quartered and sliced
14 oz can chopped green chiles
1/3 cup water
2 tsp vinegar
1 1/4 tsp chili powder
1 tsp garlic powder
1/2 tsp granulated sugar
1/2 tsp salt
1/8 tsp pepper

Spray cooker with cooking spray. In a large skillet over medium-high heat, brown flank steak in oil. Place in cooker. You may need to cut it in half to fit.

In skillet, place onion, green chiles, water, vinegar, chili powder, garlic powder, sugar, salt and pepper. Bring to a boil over medium heat, stirring to loosen browned bits from bottom of skillet. Pour over meat.

Cover and cook until meat is very tender, 6 to 7 hours on low or 3 to 3
1/2 hours on high. Transfer meat to a warm platter. Slice meat diagonally. Remove onion from slow cooker with slotted spoon and arrange around meat. If desired, baste with juices