Slow Cooker Potatoes & Onions
A simple, comforting side dish made with tender sliced potatoes, sweet onions, butter, and seasonings slow-cooked until perfectly soft and flavorful. This recipe pairs well with roasted meats, grilled dishes, breakfast foods, or can even be enjoyed on its own.
Description
These slow cooker potatoes and onions become buttery, savory, and lightly caramelized as they cook low and slow. The onions soften into the potatoes, creating a rich flavor with minimal effort. It’s an easy “set it and forget it” recipe perfect for busy days, potlucks, or family dinners.
Ingredients
- 2 pounds Yukon Gold or red potatoes, sliced into ¼-inch rounds
- 1 large yellow onion, thinly sliced
- 3 tablespoons butter, melted
- 2 tablespoons olive oil
- 1 teaspoon garlic powder
- 1 teaspoon paprika
- 1 teaspoon salt
- ½ teaspoon black pepper
- Optional: ½ teaspoon dried thyme or rosemary
- Optional garnish: chopped parsley
Instructions
- Wash and slice potatoes evenly.
- Thinly slice onions.
- In a large bowl, toss potatoes and onions with melted butter, olive oil, and seasonings.
- Lightly grease the slow cooker.
- Add the potato mixture evenly into the cooker.
- Cover and cook:
- Low: 5–6 hours
- High: 3–4 hours
- Stir once halfway through if possible.
- Potatoes are done when fork-tender.
- Garnish with parsley and serve warm.
Recipe Notes
- Yukon Gold potatoes provide the creamiest texture.
- Red potatoes hold their shape well.
- Russet potatoes become softer and more mashed-like.
- Add shredded cheese during the last 20 minutes for a richer version.
- For crispier edges, place cooked potatoes under the broiler for 5 minutes.
Tips for Best Results
1. Slice Evenly
Uniform slices ensure even cooking.
2. Don’t Overfill
Keep layers loose so heat circulates properly.
3. Use Enough Fat
Butter and oil help prevent sticking and improve texture.
4. Season Every Layer
For stronger flavor, sprinkle seasoning between layers.
5. Avoid Overcooking
Cooking too long may cause potatoes to break apart.
Servings
- Serves: 4–6 people
Nutritional Information
(Approximate per serving)
| Nutrient | Amount |
|---|---|
| Calories | 220 |
| Carbohydrates | 30g |
| Protein | 3g |
| Fat | 10g |
| Saturated Fat | 4g |
| Fiber | 4g |
| Sodium | 420mg |
| Potassium | 700mg |
| Vitamin C | 20% DV |
Health Benefits
Potatoes
- Good source of potassium
- Provide energy-rich complex carbohydrates
- Contain vitamin C and fiber
Onions
- Rich in antioxidants
- May support heart health
- Add natural sweetness without sugar
Slow Cooking
- Requires less added oil
- Enhances natural flavors
- Convenient and energy-efficient
Variations
Cheesy Version
Add:
- 1 cup shredded cheddar cheese
Herb Garlic Version
Add:
- Fresh garlic
- Rosemary
- Thyme
Creamy Version
Mix in:
- ½ cup sour cream after cooking
Smoky Version
Add:
- Cooked bacon bits
- Smoked paprika
What to Serve With
- Grilled chicken
- Steak
- Meatloaf
- Fried eggs
- Sausage
- Roasted vegetables
Storage & Reheating
Refrigerator
Store in an airtight container for up to 4 days.
Freezer
Freeze up to 2 months.
Reheat
- Microwave: 1–2 minutes
- Oven: 350°F for 10–15 minutes
- Skillet: Crisp in butter or oil
Questions & Answers
Q: Can I prepare this ahead of time?
Yes. Slice the potatoes and onions a day ahead and refrigerate separately.
Q: Do I need to add liquid?
No. The onions and butter create enough moisture while cooking.
Q: Can I use sweet potatoes?
Yes, but cooking time may be slightly shorter.
Q: Why are my potatoes mushy?
They were likely overcooked or sliced too thin.
Q: Can I make this vegan?
Yes. Replace butter with vegan butter or extra olive oil.
Q: Can I add meat?
Absolutely. Sausage, bacon, or ham work very well.