Baked Potatoes in Foil with Parmesan Ranch Sauce

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Golden, tender, and wrapped in foil, these baked potatoes are anything but basic. They’re elevated with a velvety Parmesan Ranch sauce that melts right into the warm flesh of the potatoes, creating a comforting side dish or casual main that earns its place on any dinner table. Each bite is creamy, herb-kissed, and anchored by the earthy flavor of perfectly roasted baby potatoes.

Whether you serve them at a barbecue, a cozy weeknight dinner, or a holiday potluck, these foil-wrapped potatoes bring ease and elegance together. The sauce comes together in minutes and bakes right onto the potatoes in the last stage, saving you time and dishes. Plus, the foil traps moisture and enhances the potatoes’ texture—soft on the inside, gently crisped on the outside.

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What Kind of Potatoes Should I Use?

Small Yukon gold or baby red potatoes are ideal for this recipe. Their thin skins crisp beautifully in the foil, while the insides become creamy and tender. These varieties also have a subtly buttery flavor that pairs well with Parmesan and the tang of ranch seasoning.

Ingredients for the Baked Potatoes in Foil with Parmesan Ranch Sauce

• Baby potatoes: These serve as the base and roast to creamy perfection inside the foil.
• Olive oil: Adds flavor and ensures the potatoes roast rather than steam.
• Salt and pepper: Essential for seasoning and drawing out the natural flavor of the potatoes.
• Parmesan cheese: Brings umami depth and melts into a golden crust.
• Ranch seasoning: Packs in herbaceous, tangy flavor without needing extra spices.
• Heavy cream or sour cream: Helps create a luscious, spoon-coating sauce that clings to each potato.
• Chopped parsley: A fresh finish that adds color and a hint of brightness.

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How To Make the Baked Potatoes in Foil with Parmesan Ranch Sauce

Step 1: Prep the Potatoes

Rinse and scrub the baby potatoes thoroughly. Pat them dry with a towel, then slice each one in half lengthwise. This exposes more surface area for flavor absorption and ensures even cooking.

Step 2: Season and Wrap

Toss the halved potatoes with olive oil, salt, and pepper in a mixing bowl. Arrange them cut-side up on a large sheet of aluminum foil, grouping them closely together. Fold the foil around the potatoes to form a sealed packet.

Step 3: Roast Until Tender

Preheat your oven to 400°F (200°C). Place the foil packet on a baking tray and roast for 25–30 minutes. You’ll know they’re ready when a fork slides easily into the thickest part.

Step 4: Make the Parmesan Ranch Sauce

While the potatoes bake, combine heavy cream (or sour cream), grated Parmesan cheese, and ranch seasoning in a small saucepan over low heat. Stir continuously until the cheese melts and the sauce is smooth and slightly thickened. Keep warm.

Step 5: Unwrap and Sauce

Carefully open the foil packet to expose the potatoes. Spoon the warm Parmesan Ranch sauce generously over each piece. You can return the tray to the oven for 5 more minutes to slightly brown the tops if desired.

Step 6: Garnish and Serve

Sprinkle freshly chopped parsley over the top for a burst of color and freshness. Serve warm directly from the foil or transfer to a serving platter.

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Serving and Storing Baked Potatoes in Foil with Parmesan Ranch Sauce

These potatoes are best enjoyed fresh out of the oven, when the cheese is still melty and the sauce is warm and velvety. They’re a perfect match for grilled meats, roast chicken, or even served on their own as a hearty vegetarian option.

If you have leftovers, let them cool completely before transferring to an airtight container. Store in the refrigerator for up to 3 days. Reheat in the oven at 350°F (175°C) covered with foil to maintain moisture, or pop them in the microwave for a quicker fix.

Frequently Asked Questions

Can I use full-sized potatoes?

Yes, but you’ll need to quarter them for even cooking. Baby potatoes offer a quicker, more uniform result.

Is it possible to make this dairy-free?

You can substitute the Parmesan with a plant-based version and use a non-dairy cream alternative. Keep in mind the flavor will change.

Can I prep this ahead?

Absolutely. You can pre-cut and season the potatoes, and mix the sauce ahead of time. Assemble and bake when you’re ready.

How do I make the sauce thicker?

Let the sauce simmer a bit longer or add a touch more Parmesan to increase thickness.

Will this work on the grill?

Yes! Place the foil packet on a medium-high grill and cook for 25–35 minutes with the lid closed, checking for doneness.

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