London Broil Pot Roast Recipe Oven: Slow-Roasted Herb-Infused Melting Tenderness

This oven method transforms tough cuts into meltingly tender pot roast with minimal effort. The key is low heat and time, allowing connective tissue to break down slowly into rich, juicy perfection.

I start with a well-marbled London broil, seared to develop deep flavor before the slow roast. Aromatic herbs and vegetables create a braising liquid that infuses every bite with savory complexity.

After 3-4 hours in a 325°F oven, the meat falls apart at the touch of a fork. The resulting gravy is so flavorful you’ll want to sop it up with crusty bread.

The process is straightforward but delivers restaurant-quality results. This technique never fails to impress, whether for Sunday dinner or special occasions.

Ingredients for London Broil Pot Roast Recipe Oven

Well-marbled beef and aromatic vegetables build deep, savory layers in this slow-roasted dish.

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The London broil must be well-marbled for optimal results—look for visible fat streaks throughout the cut. Costco and Whole Foods typically carry quality options. Avoid lean cuts, as they lack the connective tissue needed for that melting tenderness. The wine should be dry and bold; Cabernet Sauvignon or Merlot work beautifully. Fresh herbs are non-negotiable here—dried simply won’t deliver the same aromatic complexity.

No red wine? Substitute with an additional cup of beef broth plus 1 tbsp balsamic vinegar. Out of fresh herbs? Dried rosemary and thyme at one-third the amount can work in a pinch, though the flavor will be more muted. For the broth, Better Than Bouillon makes a rich, concentrated base. If you’re avoiding gluten, swap the all-purpose flour for cornstarch mixed with cold water.

Store the raw London broil in the coldest part of your fridge for up to 3 days. Once cooked, the pot roast keeps beautifully for 4-5 days refrigerated or 3 months frozen. The gravy may thicken as it cools—simply reheat with a splash of broth to restore its silky consistency.

Step-by-Step Instructions for London Broil Pot Roast

This method transforms tough London broil into melt-in-your-mouth perfection through slow, herb-infused roasting.

Step 1: Season and Sear the London Broil

Pat the 2.5 lb London Broil completely dry with paper towels. This ensures a proper sear rather than steaming. Season all sides generously with the 1.5 tsp Kosher Salt and 1 tsp Freshly Ground Black Pepper, pressing the seasoning into the meat so it adheres during cooking.

Heat the 2 tbsp Olive Oil in a large Dutch oven over medium-high heat until shimmering. Sear the London broil for 3-4 minutes per side until deeply browned. You want a rich, dark crust—this develops the foundational flavor for your pot roast. Remove the meat and set aside.

Step 2: Build the Aromatic Base

In the same Dutch oven, add the roughly chopped 1 whole Yellow Onion, 3 whole Carrots (peeled and cut into chunks), and 3 whole Celery Stalks. Cook for 5-6 minutes until the onion begins to soften and develop light golden color.

Add the 6 cloves Garlic Cloves (smashed), 2 tbsp Tomato Paste, 2 whole Fresh Rosemary Sprigs, 4 whole Fresh Thyme Sprigs, and 2 whole Bay Leaves. Stir for 1-2 minutes until the tomato paste darkens slightly—this deepens its sweetness and eliminates raw flavor.

Step 3: Deglaze and Braise

Pour in the 1 cup Dry Red Wine, scraping up all browned bits from the bottom of the pot. These fond bits are pure flavor. Let the wine reduce by half, about 3-4 minutes, then add the 2 cups Beef Broth.

Return the seared London broil to the Dutch oven along with any accumulated juices. The liquid should come about halfway up the meat. If needed, add a splash more beef broth. Bring to a gentle simmer, then cover and transfer to a preheated 325°F oven.

Step 4: Slow Roast to Tenderness

Roast covered for 2.5 to 3 hours, flipping the London broil halfway through. You want the meat to become fork-tender—it should pull apart easily with gentle pressure. If the liquid level drops below halfway during cooking, add a bit more beef broth to maintain moisture.

The low, steady heat breaks down the connective tissue in the London broil, transforming it from a lean, tough cut into a succulent, flavorful roast. The herbs infuse the meat and liquid with aromatic depth throughout the long cook.

Step 5: Thicken and Serve

Remove the Dutch oven from the oven and transfer the London broil to a cutting board. Skim any excess fat from the surface of the cooking liquid, then place the Dutch oven over medium heat on the stovetop.

Whisk in the 2 tbsp All-Purpose Flour and simmer for 3-4 minutes until the gravy thickens enough to coat the back of a spoon. Slice the London broil against the grain and serve with the rich, herb-infused gravy spooned over the top.

Dietary Considerations for london broil pot roast recipe oven

Gluten-Free Option

To make this dish gluten-free, simply swap the 2 tbsp all-purpose flour for 2 tbsp cornstarch mixed with 2 tbsp cold water. Whisk this slurry into the cooking liquid at the end and simmer until thickened. I’ve tested this with Bob’s Red Mill cornstarch with excellent results. 💪

Low-Sodium Adaptation

Use low-sodium beef broth and reduce the Kosher salt to 1 tsp. Skip added salt in the gravy-thickening step. The natural flavors from the meat and vegetables provide plenty of depth without excess sodium.

Dairy-Free Note

This recipe is naturally dairy-free as written. Just ensure your wine and beef broth don’t contain hidden dairy derivatives—most standard brands like Swanson or Kendall-Jackson are safe. Always check labels if you have severe allergies.

Keto-Friendly Version

Omit the flour entirely for thickening. Instead, simmer the cooking liquid uncovered for 10-15 minutes to reduce and concentrate the flavors naturally. The dish remains rich and satisfying without added carbs.

Wine Substitution

For alcohol-free cooking, replace the 1 cup dry red wine with 1 cup beef broth plus 1 tbsp balsamic vinegar. The vinegar adds the necessary acidity to balance the richness of the meat. 💡

Herb Flexibility

If fresh herbs aren’t available, use 1 tsp dried rosemary and 1 tsp dried thyme instead of fresh. Add them with the tomato paste to bloom their flavors in the hot oil.

Frequently Asked Questions