These Garlic Butter Foil Packet Potatoes (Slow Cooker) are a simple, flavorful side dish featuring tender potatoes coated in rich garlic butter, herbs, and seasonings. Wrapping the potatoes in foil locks in moisture, allowing them to steam gently while absorbing all the buttery garlic flavor. This recipe is perfect for busy days, backyard barbecues, holiday dinners, or any meal where you want a hands-off side dish.

Preparation Time

• Prep Time: 10 minutes
• Cook Time: 3½–4½ hours (High) or 6–7 hours (Low)
• Total Time: 4–7 hours

Servings

• Serves: 6
• Serving Size: About 1 cup

Ingredients

• 2½ pounds baby potatoes (red, yellow, or mixed), halved
• 6 tablespoons unsalted butter, melted
• 5 cloves garlic, minced
• 1 tablespoon olive oil
• 1 teaspoon salt
• ½ teaspoon black pepper
• 1 teaspoon Italian seasoning
• 1 teaspoon dried parsley (or 2 tablespoons fresh parsley)
• ½ teaspoon paprika (optional)
• ¼ teaspoon onion powder
• Fresh chopped parsley for garnish
• Grated Parmesan cheese (optional)

Equipment

• Slow cooker (4–6 quart)
• Heavy-duty aluminum foil
• Mixing bowl
• Measuring spoons
• Knife and cutting board

Instructions

Step 1

Wash and halve the baby potatoes. If using larger potatoes, cut them into 1-inch chunks.

Step 2

In a large bowl, combine:

• Melted butter
• Olive oil
• Garlic
• Salt
• Pepper
• Italian seasoning
• Paprika
• Onion powder

Mix well.

Step 3

Add the potatoes and toss until every piece is evenly coated.

Step 4

Lay out a large sheet of heavy-duty foil. Place the potatoes in the center and fold the foil tightly into a sealed packet.

Step 5

Place the foil packet inside the slow cooker.

Step 6

Cook:

• High: 3½–4½ hours
• Low: 6–7 hours

The potatoes are done when easily pierced with a fork.

Step 7

Carefully open the foil (hot steam will escape).

Step 8

Sprinkle with fresh parsley and Parmesan cheese if desired.

Serve immediately.

Chef’s Notes

• Yukon Gold potatoes produce the creamiest texture.
• Red potatoes stay firmer after slow cooking.
• Fresh garlic provides much better flavor than garlic powder.
• Heavy-duty foil prevents leaks and tearing.
• Add Parmesan only after cooking for the best texture.

Tips for Success

• Cut potatoes into similar sizes for even cooking.
• Do not overfill the foil packet.
• Seal the foil tightly to trap steam.
• Avoid opening the slow cooker during cooking.
• Stir gently before serving to redistribute the butter.
• Add fresh herbs after cooking for brighter flavor.

Delicious Variations

Cheesy Garlic Potatoes

Mix in shredded cheddar during the last 10 minutes.

Ranch Potatoes

Add 1 tablespoon ranch seasoning.

Spicy Version

Include red pepper flakes or diced jalapeños.

Bacon Lovers

Top with crispy cooked bacon before serving.

Lemon Herb

Finish with fresh lemon zest and dill.

What to Serve With

• Grilled steak
• Roast chicken
• BBQ ribs
• Grilled salmon
• Pork chops
• Burgers
• Meatloaf
• Smoked brisket

Storage

Refrigerate leftovers in an airtight container for up to 4 days.

Freezing

Freeze for up to 2 months.

Thaw overnight in the refrigerator before reheating.

Reheating

Microwave

Heat for 1–2 minutes.

Oven

Bake at 350°F (175°C) for about 15 minutes.

Air Fryer

Heat at 350°F for 5–7 minutes.

Nutritional Information (Per Serving)

Approximate values

• Calories: 240
• Protein: 4 g
• Carbohydrates: 29 g
• Fat: 13 g
• Saturated Fat: 7 g
• Fiber: 3 g
• Sugar: 2 g
• Sodium: 360 mg
• Potassium: 720 mg
• Vitamin C: 20% DV
• Calcium: 3% DV
• Iron: 6% DV

Health Benefits

• Potatoes are a good source of potassium, which supports healthy muscle and nerve function.
• Garlic contains beneficial plant compounds and adds flavor without extra sodium.
• Parsley contributes vitamins A, C, and K.
• Olive oil provides heart-friendly unsaturated fats.
• Cooking in foil helps retain moisture and reduces the need for excess fat.

Frequently Asked Questions (Q&A)

Q: Can I use russet potatoes?
A: Yes. Peel them if desired and cut into evenly sized chunks.

Q: Can I make this without foil?
A: Yes. Place the potatoes directly in the slow cooker or use a slow cooker liner, stirring once or twice during cooking if possible.

Q: Can I add vegetables?
A: Yes. Onions, mushrooms, carrots, and bell peppers pair well with the potatoes.

Q: Why use foil packets?
A: The foil traps steam and butter around the potatoes, helping them cook evenly while concentrating the garlic-herb flavor.

Q: Can I prepare this ahead of time?
A: Yes. Assemble the foil packet and refrigerate it for up to 24 hours before slow cooking.

Q: How do I know when the potatoes are done?
A: They should be easily pierced with a fork without resistance.

Q: Can I use salted butter?
A: Yes. Reduce the added salt slightly to avoid over-seasoning.

Q: Can I double the recipe?
A: Yes, provided your slow cooker is large enough. You may need to increase the cooking time by 30–60 minutes.

Recipe Summary

This Garlic Butter Foil Packet Potatoes (Slow Cooker) recipe is an easy, crowd-pleasing side dish that combines tender potatoes with rich butter, aromatic garlic, and herbs. The foil packet method keeps the potatoes moist and flavorful with minimal cleanup, making it ideal for weeknight dinners, potlucks, holiday feasts, and outdoor gatherings.