How To Cook Whole Potatoes In Slow Cooker [GUIDE]

Potatoes are one of the most versatile and comforting foods in the culinary world. From crispy fries to creamy mashed potatoes, they can transform into countless dishes. But one of the simplest, most satisfying ways to prepare them is by cooking whole potatoes in a slow cooker. This method is not only hands-off, allowing you to set it and forget it, but it also produces potatoes with a tender, evenly-cooked interior and a skin that retains flavor. Unlike boiling or baking in the oven, slow cooking locks in moisture, ensuring that each bite is creamy and flavorful. Slow-cooked whole potatoes are perfect for weeknight dinners, meal prep, or as a base for loaded baked potato creations topped with cheese, sour cream, bacon, and chives.

How Long To Cook Whole Potatoes In Slow Cooker

Cooking times for whole potatoes in a slow cooker can vary depending on the size of the potatoes and the temperature setting of your cooker. On average:

• Small To Medium Potatoes (around 5-7 Ounces Each)

  • Low: 6-7 hours
  • High: 3-4 hours

• Large Potatoes (8-12 Ounces Each)

  • Low: 8-10 hours
  • High: 4-5 hours

It’s important to note that slow cookers vary slightly in heat intensity, so these times should be used as a guideline. Additionally, leaving the lid on during cooking ensures the potatoes steam evenly and retain moisture.

How To Tell If It Is Done

Knowing when a potato is perfectly cooked in a slow cooker is more than just following the clock. Here’s what to look for:

• Texture: The potato should yield to gentle pressure when squeezed (use tongs or a fork, not your bare hand).
• Fork Test: Insert a fork or skewer into the center. It should slide in smoothly without resistance.
• Skin Appearance: The skin should look slightly wrinkled but not dried out or burned.
• Uniform Softness: For multiple potatoes, check more than one to ensure even cooking.

If a potato still feels firm in the center, continue cooking in 30-minute increments, checking frequently.

Ingredients Needed

Cooking whole potatoes in a slow cooker requires minimal ingredients, yet the results are deeply satisfying:

• 6-8 medium-sized whole potatoes (Russet, Yukon Gold, or Red potatoes work best)
• 1-2 tablespoons olive oil or melted butter (optional, for flavor)
• Salt and pepper, to taste
• Optional additions: garlic cloves, fresh herbs (rosemary, thyme), onion slices, or paprika for extra flavor

The beauty of slow cooker potatoes lies in their simplicity-you can enhance them with seasonings or enjoy them plain, letting their natural flavor shine.

How To Cook Whole Potatoes In Slow Cooker

1. Prepare the potatoes: Wash and scrub each potato thoroughly to remove dirt. For larger potatoes, you may pierce them a few times with a fork to allow steam to escape.
2. Season: Lightly coat each potato with olive oil or melted butter, then sprinkle with salt, pepper, and optional herbs or spices.
3. Arrange in the slow cooker: Place the potatoes in a single layer to ensure even cooking. Avoid stacking too many on top of each other, as this can slow the cooking process.
4. Cook: Cover the slow cooker with the lid and set it to either low or high, following the cooking times mentioned earlier.
5. Check doneness: Around the end of the cooking time, perform the fork test to ensure the potatoes are tender all the way through.

When Things Go Wrong

Even simple recipes can encounter mishaps. Here’s how to troubleshoot common problems with slow-cooked potatoes:

• Potatoes are undercooked: This usually happens if the potatoes are too large or stacked. Simply continue cooking, checking every 15-30 minutes.
• Potatoes are too mushy: Overcooking on high heat can cause them to break down. To prevent this, choose potatoes of similar size and avoid leaving them on high for extended periods.
• Uneven cooking: Make sure all potatoes are roughly the same size and arranged in a single layer. Consider rotating them halfway through cooking for consistent results.

Expert Tips

• Choose the right potato: Russets provide a fluffy interior, while Yukon Golds stay creamier. Red potatoes maintain structure better, making them perfect for potato salads.
• Layer flavor: Add aromatics like garlic, onion, or fresh herbs to the slow cooker to infuse the potatoes with subtle, complex flavors.
• Foil option: Wrapping potatoes individually in foil can prevent skin from drying out but may slightly extend cooking time.
• Avoid water: Unlike boiling, adding water is unnecessary. Slow cookers steam the potatoes naturally.

Can I Do This Without A Slow Cooker?

Yes! If you don’t have a slow cooker, whole potatoes can also be baked in an oven:

• Preheat the oven to 400°F (200°C).
• Rub the potatoes with olive oil, salt, and optional seasonings.
• Place directly on the oven rack or a baking sheet.
• Bake small to medium potatoes for 45-60 minutes and larger ones for 60-75 minutes, testing for doneness with a fork.

Microwaving is another option for a quicker approach, though it won’t replicate the even, tender texture of slow cooking.

Reheating Leftovers In Slow Cooker

Leftover slow-cooked potatoes can be gently reheated in a slow cooker without drying out:

1. Place leftover potatoes in the slow cooker.
2. Add a splash of water or broth to prevent them from drying.
3. Heat on low for 1-2 hours, or until warmed through.
4. Optionally, re-season lightly before serving to refresh the flavor.

This method ensures they stay soft and moist, avoiding the rubbery texture that can happen in microwaves.

FAQs

What Types Of Potatoes Are Best For Cooking Whole In A Slow Cooker?

Starchy potatoes like Russets are ideal for baking-style slow cooking, while waxy potatoes like Yukon Gold or Red potatoes hold their shape better if you want a firmer texture. Avoid very small or new potatoes if you want consistent cooking.

Do I Need To Wash Or Peel The Potatoes Before Slow Cooking?

It is essential to wash the potatoes thoroughly to remove dirt and debris. Peeling is optional; leaving the skin on preserves nutrients and helps the potatoes hold their shape during cooking.

Should I Pierce The Potatoes Before Placing Them In The Slow Cooker?

Unlike baking in an oven, piercing is not strictly necessary for slow cooking since the slow cooker environment is moist, reducing the risk of bursting. However, a few fork pricks can help steam escape and cook more evenly.

How Much Liquid Should I Add When Cooking Whole Potatoes In A Slow Cooker?

For whole potatoes, you do not need a lot of liquid. Adding 1/4 to 1/2 cup of water or broth at the bottom of the slow cooker is sufficient. The steam generated will cook the potatoes thoroughly without making them soggy.

How Long Does It Take To Cook Whole Potatoes In A Slow Cooker?

Cooking time depends on the size of the potatoes and slow cooker temperature. Small to medium potatoes typically take 4-5 hours on high or 7-8 hours on low. Large potatoes may require 6-7 hours on high or 8-9 hours on low.

Can I Cook Frozen Whole Potatoes In A Slow Cooker?

Yes, but it is not recommended to start with frozen potatoes. They take longer to cook and may become unevenly cooked. Thawing them first ensures more consistent texture and avoids overcooking the exterior.

How Can I Tell If The Potatoes Are Fully Cooked?

Insert a fork or skewer into the center of the potato. If it slides in easily without resistance, the potato is fully cooked. The skin should be tender, and the interior should be soft and fluffy for starchy varieties.

Can I Add Seasonings Or Toppings Before Slow Cooking Whole Potatoes?

Yes, you can season the potatoes with salt, pepper, herbs, or spices before cooking. Lightly brushing with olive oil can enhance flavor. Avoid heavy sauces or watery toppings, which can make the potatoes soggy.

Is It Safe To Cook Potatoes In A Slow Cooker Overnight?

Yes, slow cookers are designed for long, unattended cooking. However, make sure the potatoes are on the low setting and that the slow cooker is in good working order to prevent overcooking or drying out.

Can I Store Leftover Slow-cooked Whole Potatoes, And How Should I Reheat Them?

Leftover slow-cooked potatoes can be stored in an airtight container in the refrigerator for up to 3-4 days. Reheat in a microwave, oven, or stovetop to maintain their texture, optionally brushing with a little oil to prevent dryness.