Meta Title: Slow Cooker Potatoes and Onions Recipe | Easy Crockpot Side Dish
Meta Description: These Slow Cooker Potatoes and Onions are tender, buttery, savory, and incredibly easy to make. A simple crockpot side dish perfect for family dinners and holidays.
URL Slug: slow-cooker-potatoes-and-onions
Slow Cooker Potatoes and Onions – An Easy Crockpot Side Dish
If you’re looking for an easy side dish that requires minimal effort but delivers maximum flavor, these Slow Cooker Potatoes and Onions are a perfect choice. Tender potatoes and sweet onions slowly cook together with butter, garlic, and herbs until they become soft, savory, and incredibly comforting.
This simple crockpot recipe is ideal for busy weeknights because the slow cooker does most of the work. Instead of standing over the stove, you can prepare the ingredients, add them to the slow cooker, and let them cook while you focus on the rest of your meal.
The butter melts into the potatoes as they cook, while the onions become tender and slightly sweet. Garlic, herbs, and black pepper add just enough seasoning without overpowering the natural flavor of the vegetables.
Serve these buttery potatoes alongside roast chicken, steak, pork chops, meatloaf, or grilled sausages. They are also an excellent addition to holiday dinners, potlucks, and family gatherings.
Why You’ll Love These Slow Cooker Potatoes
- Easy crockpot side dish
- Minimal preparation
- Tender and buttery potatoes
- Sweet caramelized-style onions
- Uses inexpensive ingredients
- Perfect for family dinners
- Great holiday side dish
- Easy to customize
Ingredients
- 2½ pounds baby potatoes or Yukon Gold potatoes
- 2 large yellow onions, sliced
- 4 tablespoons unsalted butter
- 3 cloves garlic, minced
- ½ cup chicken or vegetable broth
- 1 teaspoon salt
- ½ teaspoon black pepper
- 1 teaspoon garlic powder
- 1 teaspoon dried thyme
- ½ teaspoon dried rosemary
- 2 tablespoons fresh parsley, chopped
Optional Additions
- ½ teaspoon smoked paprika
- ½ cup shredded Parmesan cheese
- 2 tablespoons grated Parmesan
- ½ teaspoon red pepper flakes
- Fresh rosemary for garnish
How to Make Slow Cooker Potatoes and Onions
Step 1: Prepare the Potatoes
Wash the potatoes thoroughly.
If using baby potatoes, cut larger ones in half.
If using Yukon Gold potatoes, cut them into approximately 1-inch pieces.
Try to keep the pieces similar in size so they cook evenly.
There’s no need to peel baby potatoes. Their thin skins add texture and flavor.
Step 2: Prepare the Onions
Peel the onions and slice them into thin or medium-thick strips.
Separate the slices slightly with your hands.
Yellow onions work especially well because they become naturally sweet as they cook.
Step 3: Layer the Slow Cooker
Lightly grease the inside of your slow cooker.
Add the potatoes first, followed by the sliced onions.
Add minced garlic.
Pour the broth over the vegetables.
Step 4: Add Butter and Seasonings
Cut the butter into small pieces and distribute it evenly over the potatoes and onions.
Sprinkle with:
- Salt
- Black pepper
- Garlic powder
- Thyme
- Rosemary
Add smoked paprika or red pepper flakes if desired.
Step 5: Slow Cook
Cover and cook on:
LOW: 5–6 hours
or
HIGH: 2½–3½ hours
The potatoes are ready when they can be easily pierced with a fork.
Avoid cooking them for significantly longer than necessary because potatoes can become overly soft.
Step 6: Garnish and Serve
Once the potatoes are tender, gently stir everything together.
Sprinkle with fresh parsley.
If using Parmesan cheese, add it while the potatoes are still hot and allow it to melt slightly.
Serve immediately.
Tips for the Best Slow Cooker Potatoes and Onions
Choose the right potatoes
Yukon Gold and baby potatoes work particularly well because they hold their shape while becoming tender.
Cut potatoes evenly
Similar-sized pieces ensure even cooking.
Don’t use too much broth
Potatoes release moisture as they cook, so a small amount of broth is enough.
Avoid overcooking
Check the potatoes toward the lower end of the recommended cooking time.
Add fresh herbs at the end
Fresh parsley and rosemary provide a brighter flavor when added just before serving.
Delicious Variations
Cheesy Slow Cooker Potatoes
Add shredded cheddar or Monterey Jack during the final 15 minutes.
Garlic Butter Potatoes
Increase the garlic and butter for an especially rich side dish.
Bacon Potatoes and Onions
Add cooked crispy bacon just before serving.
Ranch Potatoes
Add a packet of ranch seasoning for a creamy, tangy variation.
Loaded Slow Cooker Potatoes
Top with cheddar cheese, bacon, sour cream, and green onions.
Spicy Potatoes and Onions
Add smoked paprika, cayenne, or red pepper flakes.
What to Serve with Slow Cooker Potatoes and Onions
These buttery potatoes make an excellent side dish for:
- Roast chicken
- Grilled steak
- Pork chops
- Meatloaf
- Roast beef
- Sausage
- Grilled chicken
- Baked fish
They are also perfect for:
- Thanksgiving
- Christmas dinner
- Easter
- Sunday family meals
- Potlucks
- BBQ gatherings
Can I Make These Potatoes Ahead of Time?
Yes.
You can prepare the potatoes and onions several hours ahead and keep them refrigerated until cooking.
Cooked leftovers also reheat well.
For busy holiday meals, this recipe is particularly useful because the slow cooker frees up valuable oven space for other dishes.
Storage Instructions
Allow leftovers to cool before transferring them to an airtight container.
Store in the refrigerator for up to 4 days.
Reheat in a skillet, oven, or microwave until hot.
For best texture, add a small amount of butter or broth when reheating if the potatoes have become dry.
You can freeze the cooked potatoes for up to 2 months, although the texture may become slightly softer after thawing.
Estimated Nutrition
Approximate nutrition per serving:
- Calories: 280
- Protein: 5g
- Carbohydrates: 39g
- Fat: 12g
- Fiber: 5g
- Sodium: 540mg
Nutrition information is approximate and varies according to potato size and ingredients.
Frequently Asked Questions
What potatoes are best for a slow cooker?
Yukon Gold, baby potatoes, and red potatoes are excellent choices because they hold their shape well during slow cooking.
Can I use russet potatoes?
Yes, but russet potatoes are starchier and may become softer or break apart more easily.
Do I need to boil the potatoes first?
No. The potatoes cook completely in the slow cooker.
Can I add cheese?
Absolutely. Add shredded cheese during the final 10–15 minutes so it melts without becoming overcooked.
Can I make these potatoes without broth?
Yes. You can use a small amount of water, although broth adds more flavor.
Why are my slow cooker potatoes watery?
Too much liquid can make the finished dish watery. Start with a small amount of broth because the potatoes and onions release additional moisture during cooking.
Final Thoughts
These Slow Cooker Potatoes and Onions are proof that a delicious side dish doesn’t have to be complicated. Tender potatoes, sweet onions, melted butter, garlic, and herbs slowly cook together to create a warm and flavorful accompaniment to almost any main course.
Whether you’re preparing a busy weeknight dinner or a large holiday meal, this easy crockpot recipe is a reliable side dish that requires very little hands-on effort. Add some fresh herbs before serving, and enjoy these buttery potatoes straight from the slow cooker.

