Carbonnades A La Flamande

• 6 large yellow onions, halved lengthwise and sliced thin
• 2 tablespoons butter
• 4 tablespoons olive oil, divided
• 3 pounds beef stew meat, or chuck roast cut in 1 inch or so cubes
• salt, pepper, flour
• 1 1/2 teaspoons dried rosemary leaves, crumbled
• 1 teaspoon dried thyme
• 1 12 ounces bottle dark beer
• 2 cups beef stock
• 1 tablespoon brown sugar
• 1 1/2 tablespoons Dijon mustard
• 1 tablespoon cornstarch
• cooked egg noodles, for serving

1. Melt the butter with 2 tbsp of the olive oil in a Dutch oven. Add the onions and cook over medium high heat, stirring, until they begin to soften. Lower heat to medium and cook, stirring occasionally, until they caramelize. Remove to a bowl.
2. Salt and pepper beef and dust liberally with flour. Heat remaining olive oil in same Dutch oven and brown the beef in batches, removing to bowl with onions when browned.
3. Deglaze Dutch oven with beer, being sure to scrape up all the browned bits. Add beef and onions back to pot, along with beef stock, rosemary and thyme. Reduce heat to medium low, cover, and simmer for 2 hours.
4. Add brown sugar and mustard, stirring to blend, and cook for another 30 minutes. Taste and adjust seasonings. Dip out a half-cup of broth, allow it to cool, and stir in cornstarch until smooth. Add back to pot and cook for another 15 minutes.
5. Serve in wide, shallow bowls over egg noodles.

yellow onions, butter, olive oil, beef stew meat, salt, rosemary, thyme, beef stock, brown sugar, mustard, cornstarch, egg noodles

Taken from food52.com/recipes/2932-carbonnades-a-la-flamande (may not work)