Ingredients
Method
Preparation
- Pat beef dry then sprinkle with all the salt and pepper.
- Heat 1 tbsp oil in a large heavy based pot or skillet over high heat.
- Add beef in a single layer and brown aggressively all over, about 4 minutes per batch; do not crowd the pan.
- Remove browned beef to a plate and add more oil if needed; repeat until all beef browns.
- Let the pot cool slightly, then melt half the butter over medium heat.
- Add the minced garlic and sliced onion and cook for 3 minutes until softened and fragrant.
- Sprinkle the flour across the surface, then stir to combine evenly for about 1 minute.
- Add the Dijon mustard and stir until the mixture looks gluey.
- While stirring, pour in about half the beef stock and whisk until the flour dissolves into the liquid until lump free.
- Add the remaining stock, stir well, and scrape the brown bits from the bottom of the pot.
- Bring the mixture to a simmer on the stove for 2 minutes to thicken slightly.
Cooking
- Transfer the browned beef and gravy into your slow cooker and stir to combine.
- For a slow cooker low setting: cook on LOW for 7 to 8 hours until beef is very tender.
- For a slow cooker high setting: cook on HIGH for 3 to 4 hours until beef is tender.
- For an oven method: cover a heavy pot and cook at 150°C / 300°F for about 2.5 to 3 hours until beef is fork-tender.
Garlic Butter Mushrooms
- While the stew cooks, melt the remaining 3 tbsp butter in a skillet over medium-high heat.
- Add the sliced mushrooms in a single layer and let them brown without moving for 3 minutes.
- Stir the mushrooms and cook another 3 to 4 minutes until golden and any released liquid evaporates.
- Add the finely minced garlic and cook 30 seconds until fragrant, then season with 1/2 tsp salt and pepper.
- Remove mushrooms from heat and set aside.
Finishing Stew
- When the beef is tender, scoop 1 cup of hot cooking liquid into a bowl and beat in the sour cream to temper it.
- Stir the tempered sour cream back into the slow cooker until fully combined.
- Add the garlic butter mushrooms to the stew and stir to combine.
- Taste and adjust seasoning with more salt and pepper if needed.
- Keep the stew warm for up to 30 minutes before serving.
Nutrition
Notes
Use chuck or stewing beef for the best texture and value. Brown beef in batches to get a deep crust and better flavor. Temper the sour cream to avoid curdling. For a thicker sauce, mix 1 tsp cornstarch with 1 tbsp cold water and stir in during the last 15 minutes of cooking.
