Slow-Cooked Beef Brisket with Garlic and Rosemary

By AislePrompt Test Kitchen · Reviewed by AislePrompt Editorial · ·

Tender beef brisket slow-cooked with fragrant garlic and rosemary, perfect for a hearty keto dinner with minimal carbs. This american-inspired keto (low carb) ready in about 230 minutes pairs beef brisket, olive oil, minced garlic cloves for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 480 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.

Prep: 20 min Cook: 210 min Serves 6 American cuisine 480 cal/serving
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Ingredients

Instructions

  1. Step 1: Preheat oven to 300°F. Rub 3 lbs beef brisket all over with 1 1/2 tsp salt, 1 tsp black pepper, and 6 minced garlic cloves. Heat 2 tbsp olive oil in a large oven-safe pot over medium-high heat.
  2. Step 2: Sear brisket on all sides until deeply browned, about 3-4 minutes per side. Remove brisket and set aside.
  3. Step 3: Add 1 medium sliced onion to the pot and sauté for 5 minutes until softened and translucent. Stir in 2 tbsp red wine vinegar and scrape any browned bits from the bottom.
  4. Step 4: Return brisket to the pot, nestle 3 fresh rosemary sprigs around it, and pour in 1 cup beef broth. Cover pot tightly with lid and place in oven.
  5. Step 5: Slow-cook for 3 to 3 1/2 hours until brisket is fork-tender and flavors meld beautifully. Remove rosemary sprigs before slicing against the grain. Serve with pan juices spooned over.

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Frequently asked questions

How long does Slow-Cooked Beef Brisket with Garlic and Rosemary take to make?

Total time is about 230 minutes (20 min prep + 210 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-Cooked Beef Brisket with Garlic and Rosemary?

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-Cooked Beef Brisket with Garlic and Rosemary?

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-Cooked Beef Brisket with Garlic and Rosemary 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.

Is Slow-Cooked Beef Brisket with Garlic and Rosemary low carb?

Yes — this recipe is tagged low carb based on its ingredient list. Always cross-check labels for packaged ingredients (sauces, broths, condiments) since formulations vary by brand.

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