Slow-Roasted Beef Brisket with Root Vegetable Mash
Tender slow-roasted beef brisket accompanied by a creamy mash of traditional British root vegetables, offering rich, comforting flavors. This british-inspired beef ready in about 315 minutes pairs beef brisket, olive oil, salt for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 580 calories and feeds 6, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.
Ingredients
- 3 lbs beef brisket
- 2 tbsp olive oil
- 1 1/2 tsp salt
- 1 tsp black pepper
- 3 medium, peeled and chopped carrots
- 2 medium, peeled and chopped parsnips
- 2 large, peeled and chopped potatoes
- 3 tbsp unsalted butter
- 1/2 cup whole milk
- 1 tbsp chopped fresh thyme
- 3, smashed garlic cloves
Instructions
- Step 1: Preheat oven to 275°F. Rub 3 lbs beef brisket with 2 tbsp olive oil, 1 1/2 tsp salt, and 1 tsp black pepper. Place in roasting pan with 3 smashed garlic cloves and 1 tbsp chopped fresh thyme.
- Step 2: Cover brisket tightly with foil and roast for 4-5 hours until fork-tender and internal temperature reaches 195°F.
- Step 3: Meanwhile, place 3 chopped carrots, 2 chopped parsnips, and 2 chopped potatoes in a large pot of salted water. Boil for 20 minutes until vegetables are soft.
- Step 4: Drain vegetables and mash with 3 tbsp unsalted butter and 1/2 cup whole milk until smooth and creamy. Season with salt and pepper to taste.
- Step 5: Slice the rested brisket against the grain and serve atop the root vegetable mash for a hearty, traditional British meal.
Frequently asked questions
How long does Slow-Roasted Beef Brisket with Root Vegetable Mash take to make?
Total time is about 315 minutes (15 min prep + 300 min cook). Most home cooks find this fits comfortably into a weeknight; double the batch on Sunday for two dinners.
How do I store leftover Slow-Roasted Beef Brisket with Root Vegetable Mash?
Cool to room temperature within 2 hours, then store in an airtight container in the fridge for up to 4 days. Reheat covered in a 350°F oven for 10-12 minutes, or microwave at 70% power in 60-second bursts to keep beef brisket from drying out.
Can I substitute ingredients in Slow-Roasted Beef Brisket with Root Vegetable Mash?
Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.
How do I scale Slow-Roasted Beef Brisket with Root Vegetable Mash for a different number of people?
The recipe is written for 6 servings. Multiply each ingredient by (your serving target / 6). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.
What goes well with Slow-Roasted Beef Brisket with Root Vegetable Mash?
British beef like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.
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