Austen Day Beef Stew

2 tbs canola oil
1/4 cup all-purpose flour
2 pounds lean stewing beef, cubed
1 large leek, sliced, white and pale green parts only
2 medium yellow onions, sliced
4 medium red potatoes, large diced
2 large carrots, medium diced
1 medium celeriac, medium diced
5 cloves garlic, coarsely chopped
1-20 oz can plum tomatoes with liquid
1 cup red wine
1 cup beef stock or water
3-4 springs whole fresh thyme
1 bay leaf
kosher salt/fresh ground pepper

In a large skillet, heat oil over medium-high heat. Dredge beef in flour and sear in skillet (this may need to be done in two batches), turning to brown on all sides. Transfer to the bowl of a large crock pot. Deglaze skillet with red wine and add wine to pot along with leek, onions, potatoes, carrots, celeriac, garlic, tomatoes with liquid, and herbs. Add water. Set pot to cook for eight hours. Discard herbs. Season to taste. Serve with fresh buttermilk scones.