Smoky Barbecued Overnight Flanken Roast (Chef Rivky Kleiman)

Recipe by: Chef Rivky Kleiman

No time to cook? Let your oven do the work overnight with Chef Rivky Kleiman’s Smoky Barbecued Overnight Flanken Roast—a melt-in-your-mouth beef dish that’s packed with smoky-sweet flavor.

Quick Recipe Facts

6

# OF

SERVINGS

20

MINUTES

PREP TIME

840–960

MINUTES

COOK TIME

860–980

MINUTES

TOTAL

~420 Calories per serving | Protein: 38g | Carbs: 18g | Fat: 22g

Ingredients

1 Prairie Street Beef Boneless Flanken
1 teaspoon chili powder
½ teaspoon garlic powder
¼ teaspoon celery salt
½ cup ketchup
½ cup chili sauce
¼ cup brown sugar, packed
2 tablespoons apple cider or red wine vinegar
2 tablespoons fish-free Worcestershire sauce
1 teaspoon liquid smoke
¾ teaspoon dry mustard
3 cloves garlic, crushed
1 tablespoon extra virgin olive oil
⅛ teaspoon freshly ground black pepper

Let's Get Cooking!

1. Preheat oven to 225°F.
2. Pat Boneless Flanken dry with paper towels.
3. Mix chili powder, garlic powder, celery salt, and black pepper in a bowl to create a dry rub.
4. Mix ketchup, chili sauce, brown sugar, vinegar, Worcestershire sauce, liquid smoke, dry mustard, and garlic in another bowl to make barbecue sauce.
5. Heat skillet over medium-high heat. Rub flanken with olive oil, season with dry rub, and sear 5 minutes per side.
6. Transfer to baking pan and cover with barbecue sauce.
7. Seal tightly with several layers of heavy-duty foil.
8. Cook in preheated oven for 14–16 hours (overnight).

Let rest 10 minutes before slicing against the grain. Serve warm.

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Chef's Tips

  • Make sure the foil seal is tight to retain moisture during the long cooking time.
  • Use a meat thermometer if desired—internal temp should be around 200°F for ultimate tenderness.
  • Liquid smoke adds depth, but can be omitted if preferred.

Common Recipe Questions

Can I use bone-in flanken? Show Item Content

Yes, but adjust cooking time slightly, as bone-in cuts may take longer to become tender.

Do I have to cook it overnight? Show Item Content

No, you can cook it during the day, but the long, slow cooking time is key to tenderness.

What sides go best with this roast? Show Item Content

It pairs well with roasted vegetables, mashed potatoes, or coleslaw.

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