Mashed potatoes are one of those dishes that just feel like home, aren’t they? When they’re warm, creamy, and buttery, you know you’re in for something comforting. These Crockpot Mashed Potatoes have become one of my favorite make-ahead sides for the holidays, Sunday suppers, or anytime I need something cozy without babysitting a boiling pot.
Even with the slow cooker doing most of the work, these potatoes still come out rich, velvety, and gently infused with garlic, just the way I like them. And the best part? You can keep them warm right in the crockpot until it’s time to serve. No last-minute scrambling needed!
Crockpot Mashed Potatoes
With just a few affordable pantry staples like potatoes, milk, butter, and garlic, this slow cooker recipe gives you rich, creamy mashed potatoes with hardly any effort. It only takes 10 minutes to prep, and there’s no boiling, no draining, and no fuss. You can even prepare the potatoes ahead or add your own twist with dairy-free swaps or flavorful mix-ins like sour cream or chive cream cheese.
Key Ingredients
Here’s a quick overview of the key ingredients for this recipe. For the full list of ingredients and exact measurements, be sure to check the recipe card at the bottom of this post.
- Russet potatoes: Choose large, firm potatoes. Yukon Golds work too if you prefer a creamier, naturally buttery flavor. To prep ahead, you can peel and chop potatoes up to a day in advance. Just store them fully submerged in cold water with a pinch of salt or a splash of lemon juice in the fridge to keep them fresh.
- Garlic: Optional, but adds a mellow richness when cooked low and slow. I use 3 to 4 cloves, but you can adjust to taste, or leave them out entirely.
- Whole milk: Adds creaminess. You can substitute half-and-half or dairy-free milk like oat or almond.
- Heavy cream: For ultra-creamy texture. Use more milk if you want to lighten it up.
- Butter: I like using salted butter for extra flavor, but unsalted works too.
How To Make Crockpot Mashed Potatoes
Prep & Add to Slow Cooker
I start by peeling the potatoes and cutting them into 1-inch cubes. I like to keep them all about the same size so they cook evenly. Then I lightly spray the slow cooker with cooking spray. This helps avoid those stuck-on bits.
Next, I toss the potatoes into the slow cooker. If I’m using garlic, I mince it and add it right in.
Let It Cook & Warm Butter and Cream
Then I sprinkle on the salt and pepper and pour in the milk. Give it a gentle stir so everything is nestled together.
Cover and cook on HIGH for about 4 to 5 hours. You’ll know they’re done when the potatoes fall apart easily when pierced with a fork. This is one of those moments where your kitchen starts smelling like comfort.
When the potatoes are done, I switch the slow cooker to WARM. Meanwhile, I melt the butter in a small saucepan, then add the cream and heat it gently just until it’s warm, not boiling.
Mash and Mix
I remove any browned bits from the edge of the slow cooker, then slowly pour in the warm butter and cream while mashing the potatoes. I usually start with a masher, then switch to a hand mixer if I want them extra smooth. Don’t overmix; just mash until fluffy and lump-free.
They can if overmixed. Use a gentle hand and avoid blending for too long.
Keep your crock pot covered, and put it on the warm setting. If they are sitting out for a long time, you might need to add a splash of warm milk to prevent them from drying out.
Variations, Substitutions, and Recipe Tips
Dairy-Free: Swap in oat milk or almond milk with dairy-free cream and plant-based butter.
Low-Fat: Replace heavy cream with more milk or a light half-and-half.
Flavor Boosters: Fold in sour cream, cream cheese, grated parmesan, or even cheddar for richness. Some like chive cream cheese for a tangy twist.
Herbs: Add fresh chives, parsley, or thyme for a pop of color and flavor.
Garlic Lovers: Roast the garlic ahead of time for a deeper, sweeter flavor, or stir in extra cloves if you can’t get enough.
My Favorite Slow Cooker Tools
Hospitality Challenge
Create a warm, inviting space by turning a pot of crockpot mashed potatoes into a full-blown mashed potato bar. Set out bowls of toppings like shredded cheddar, crumbled bacon, sour cream, chives, sautéed green beans and mushrooms, caramelized onions, roasted garlic, or even steamed broccoli and gravy. It’s a low-stress, flexible way to host, perfect for all ages and dietary needs, while sparking easy conversation as everyone builds their own plate.
To serve a full meal, you can pair your potatoes with a hearty main like Easy 5 Ingredient Slow Cooker Pork Chops with Gravy and sweeten the table with these Soft Lemon Blueberry Cake Cookies. Host this for a small group, youth hangout, or Sunday lunch, and consider adding a short devotional or prayer to center the moment on the One who prepares a table for us.
More Cozy Crockpot Sides
- Crock Pot Corn on the Cob: Southern Milk Bath
- Southern-Style Crock Pot Green Beans
- Cheesy Hash Brown Potatoes in the Crock Pot
- Boston Baked Bean Recipe in the Crock Pot
- Southern Style Crock Pot Green Beans
I hope these Crockpot mashed potatoes bring comfort and ease to your table. If you have any questions about making this recipe, feel free to ask in the comments below. I’m here to help!
Crockpot Mashed Potatoes
Ingredients
- Cooking spray, for greasing the slow cooker
- 5 pounds russet potatoes
- 3 to 4 cloves garlic, optional
- 1 teaspoon salt, plus more to taste
- 1/2 teaspoon black pepper, to taste
- 2 ½ cups whole milk
- 1 cup heavy cream
- 8 tablespoons butter, 1 stick
Instructions
Prepare the Slow Cooker and Potatoes
- Lightly grease the sides of a 6-quart or larger slow cooker with cooking spray.Cooking spray
- Peel the potatoes and cut them into even 1-inch cubes.5 pounds russet potatoes
- Add potatoes to the slow cooker.
Add Garlic and Seasoning
- Peel and mince the cloves of garlic.3 to 4 cloves garlic
- Add them to the slow cooker.
- Sprinkle in 1 teaspoon salt and black pepper1 teaspoon salt, 1/2 teaspoon black pepper
Add Dairy and Cook
- Pour in milk and stir gently.2 ½ cups whole milk
- Cover and cook on HIGH for 4 to 5 hours, or until the potatoes are very soft and fall apart when a fork is inserted.
Melt Butter and Warm Dairy
- When the potatoes are done, turn the slow cooker to WARM.
- In a saucepan, melt the butter over low heat. Add heavy cream and heat until warm but not boiling.8 tablespoons butter, 1 cup heavy cream
Mash the Potatoes
- First, discard any browned bits of potatoes from the slow cooker sides.
- Slowly pour the warm butter and cream mixture into the potatoes, stirring gently as you go. At first, the mixture may seem too loose, but don't worry, the potatoes will quickly absorb the liquid and become creamy.
- Use a potato masher or an electric hand mixer directly in the slow cooker to blend everything together. Take care not to overmix, overbeating releases too much starch, which can make the potatoes gluey. Mash just until the potatoes are smooth and fluffy with no large lumps.
Taste, Season and Serve
- Add more salt and pepper to taste.
- To hold for serving, keep covered on the WARM setting on your crock pot for up to 4 hours.
Gina’s Notes and Tips
- Potatoes: Russets mash easily and have a fluffy texture. Yukon Golds work too and give a little more creamy texture.
- Cook on HIGH: I have made these on LOW, but they get a little more starchy cooking that long, so I stick with HIGH.
- Doubling: When doubling this recipe, use two crock pots instead of one to get even cooking for the potatoes.
- Lighter Option: Half-and-half can replace the heavy cream for a lighter, more potato-forward taste. Use the same amount and timing.
- Dairy-Free: Make a separate batch using almond milk or another plant-based milk in place of both the whole milk and the heavy cream, in the same amounts, plus a plant-based butter. Don’t combine this with the half-and-half swap.
- Mix-Ins: After mashing, stir in about 1 cup sour cream, a block of cream cheese softened to room temperature, chives, 1/2 cup Parmesan or 1/2 cup cheddar, fresh herbs, or a few tablespoons of chopped roasted garlic.
- Make Ahead: Peel and chop the potatoes the day before. Keep them completely submerged in water in the refrigerator so they don’t turn brown, then drain off the water when you’re ready to cook.
- Holding: Keep covered on WARM for up to 4 hours. If they start to dry out, stir in a splash of warm milk. Cold milk makes them stiff and starchy.
- Refrigerate: Store in an airtight container in the fridge within 2 hours of cooking or taking them off the WARM setting. Keeps 3 to 4 days.
- Reheat: For the creamiest results, warm them slowly on the stovetop with a splash of milk or cream, stirring gently. The microwave works too, just heat in short intervals and stir often.
- Freezing Not Recommended: Potatoes with dairy can become grainy when thawed.
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These look very good. I am going to try them.
Mary, I like that it save room on my stove top – be sure to get firm potatoes like Yukon Golds. They make the mashed potatoes creamier.