On a plate, combine flour, salt & pepper, & thyme.
Dredge meat in seasoned flour, coating all sides.
Heat oil in large saucepan & brown meat on both sides, turning once (~ 7 minutes).
Place carrots, celery, potatoes, onions, and garlic in slow cooker.
Top vegetables with browned roast.
Add broth & vinegar.
Cover & cook on low for 8-10 hours, or high for 4-5 hours.
*may use wheat flours, or gluten-free flours. I use homemade pumpkin flour or brown rice flour.