Papa’s 3-Ingredient Sunday Slow Cooker Roast
Some of the best family recipes are the simplest ones. Papa’s 3-Ingredient Sunday Slow Cooker Roast is a classic, old-fashioned comfort meal made with just three main ingredients.
A hearty chuck roast slowly cooks until tender and juicy, while a savory onion soup mixture creates a rich, flavorful cooking sauce. It’s the kind of dinner that fills the house with an incredible aroma and brings everyone to the table.
With almost no hands-on preparation, this recipe is perfect for lazy Sundays, family dinners, and cozy evenings at home.
Why You’ll Love This Recipe
- Only 3 ingredients: Simple, affordable, and easy to prepare.
- Minimal effort: Let your slow cooker do the work.
- Tender beef: Chuck roast becomes wonderfully fork-tender when cooked low and slow.
- Classic Sunday dinner: Comforting, hearty, and family-friendly.
- Great leftovers: Delicious in sandwiches, wraps, or reheated with gravy.
Ingredients
- 3–4 pounds beef chuck roast
- 1 packet dry onion soup mix
- 1 cup beef broth
How to Make Papa’s Sunday Roast
Step 1: Prepare the Roast
Pat the chuck roast dry with paper towels. Trim away any unusually thick exterior fat, leaving the marbling intact for flavor and tenderness.
Place the roast in the bottom of your slow cooker.
Step 2: Add the Seasoning
Sprinkle the dry onion soup mix evenly over the top of the roast.
Pour the beef broth around the sides of the roast.
Step 3: Slow Cook
Cover and cook until the beef is very tender and easily pulls apart with a fork.
- LOW: 8–10 hours
- HIGH: 5–6 hours
Cooking time can vary depending on the size and shape of the roast. For the best results, cook until the beef is fork-tender rather than relying only on the clock.
Step 4: Rest and Serve
Carefully transfer the roast to a serving platter and let it rest for about 10 minutes.
Slice or gently shred the beef, then spoon some of the flavorful cooking juices over the top.
Tips for the Best Slow Cooker Roast
- Use chuck roast: Its marbling and connective tissue make it ideal for slow cooking.
- Don’t rush the roast: If the beef is tough, it usually needs additional cooking time.
- Sear it first if you have time: Browning the roast before slow cooking adds extra depth of flavor, although it’s completely optional.
- Keep the lid closed: Opening it repeatedly can increase the cooking time.
- Rest before serving: A short rest makes the roast easier to slice and serve.
What to Serve With Sunday Roast
For a classic family dinner, serve the roast with:
- Creamy mashed potatoes
- Roasted carrots
- Green beans
- Buttered corn
- Steamed broccoli
- Egg noodles
- Warm dinner rolls
The cooking juices are especially delicious spooned over mashed potatoes.
Easy Variations
Add Vegetables: Place carrots, potatoes, onions, and celery around the roast for a complete one-pot dinner.
Make a Richer Gravy: Thicken some of the cooking liquid with a cornstarch slurry after cooking.
Add Garlic: A little garlic powder or fresh minced garlic can add extra savory flavor.
Try Fresh Herbs: Add a sprig of rosemary or thyme for a more traditional roast flavor.
Frequently Asked Questions
Can I use another cut of beef?
Chuck roast is highly recommended because its marbling and connective tissue become tender during long cooking. Other beef roasts can work, but texture and cooking time may vary.
Why is my roast still tough?
If the roast is tough, it may simply need more time. Continue slow cooking until the connective tissue has broken down and the beef is easily pierced with a fork.
Can I cook this roast on HIGH?
Yes. Cook it for approximately 5–6 hours on HIGH, but LOW cooking for 8–10 hours is often preferred for a tender, traditional texture.
Can I add potatoes and carrots?
Absolutely. Add large chunks of potatoes and carrots around the roast before cooking. Larger pieces hold their shape better during the long cooking time.
How do I make gravy from the cooking juices?
Transfer some of the cooking liquid to a saucepan. Mix 1 tablespoon cornstarch with 2 tablespoons cold water, whisk it into the hot liquid, and simmer until thickened.
How should I store leftovers?
Place cooled beef and cooking juices in airtight containers and refrigerate for up to 3–4 days.
Can I freeze the roast?
Yes. Freeze cooled beef with some of its cooking juices in a freezer-safe container for up to 3 months for best quality. Thaw overnight in the refrigerator before reheating.
Final Thoughts
Papa’s 3-Ingredient Sunday Slow Cooker Roast is the kind of simple recipe that feels like a family tradition. With just chuck roast, onion soup mix, and beef broth, you can create a hearty dinner that’s tender, savory, and incredibly comforting.
Serve it with mashed potatoes and vegetables, gather everyone around the table, and enjoy a classic Sunday meal without all the fuss. Sometimes, three ingredients are all you need for a memorable dinner.