Side Dishes
This Philadelphia Irish potatoes recipe delivers the iconic golden-crisp wedges that make every holiday table shine brighter. ✨ The secret lies in high-heat roasting and a rich herb-butter finish that transforms humble potatoes into a showstopping side dish.
I first made these for Thanksgiving when my family’s traditional recipe fell flat—now they’re the star of every gathering.
The traditional method calls for thick-cut potato wedges tossed in olive oil, salt, and herbs, then roasted until edges caramelize into perfect crispness. Unlike fries, these wedges stay tender inside while developing that coveted crust. The herb butter—garlic, parsley, and a touch of lemon—elevates them from simple to unforgettable.
What you’ll end up with is a platter of golden, crispy wedges that disappear faster than you can say "second helping." The aroma alone fills the kitchen with warmth, and the texture is the perfect balance—crunchy outside, fluffy within.
Serve them alongside roasted meats or gravy for the full Philadelphia Irish experience.
Pro tip: For extra flavor, add thinly sliced onions or carrots to the pan—they caramelize beautifully alongside the potatoes. This dish is foolproof, but the key is patience: don’t rush the roasting, or you’ll lose that crispy magic. Let’s get cooking!
Ingredients for philadelphia irish potatoes
Golden, crispy wedges start with these simple yet transformative ingredients.
| Ingredient | Amount | Notes |
|---|---|---|
| Russet Potatoes 🥔 | 2 lb | Cut into 1-inch wedges, skin on |
| Extra-Virgin Olive Oil 🫒 | ½ cup | High-quality, fruity variety |
| Kosher Salt 🧂 | 1 ½ tbsp | Diamond Crystal preferred |
| Fresh Parsley 🌿 | ¼ cup | Chopped, flat-leaf preferred |
| Garlic Cloves 🧄 | 4 cloves | Minced, fresh preferred |
| Unsalted Butter 🧈 | ½ cup | Cold, cubed for herb butter |
| Lemon Juice 🍋 | 1 tbsp | Freshly squeezed |
| Black Pepper 🌶️ | ½ tsp | Freshly ground |
| Yellow Onions 🧅 | 1 medium | Thinly sliced, optional |
| Carrots 🥕 | 2 medium | Thinly sliced, optional |
| Fresh Rosemary 🌿 | 1 tbsp | Finely chopped, optional |
The potatoes are everything here—Russet is the gold standard for crispiness, but Yukon Golds work too. Grab the largest russets you can find at Trader Joe's or Whole Foods, as they have fewer blemishes. Cutting them into 1-inch wedges ensures even cooking. The skin stays on for extra texture, but peel if you prefer a smoother bite. For the herb butter, unsalted butter is a must—salted will overpower the delicate flavors. I always grab European-style butter from Costco for that rich, creamy texture.
No fresh parsley? Dried parsley works at half the amount, but fresh is worth the trip to the store. Short on garlic? Garlic powder at one-third the amount gets you close, though fresh minced garlic adds that unmatched depth. The optional onions and carrots are game-changers—they caramelize beautifully alongside the potatoes. Thinly slice them (mandoline if you're fancy) so they cook quickly. For extra aroma, add a sprig of fresh rosemary to the roasting pan—it infuses the potatoes with a fragrant touch. If you're in a pinch, dried rosemary at one-fifth the amount will do.
These potatoes reheat beautifully—just 5 minutes at 375°F to restore that crispy edge. Store leftovers in an airtight container for up to 4 days, but honestly, they won’t last that long. For meal prep, roast a double batch and freeze portions for up to 3 months. The herb butter keeps 1 week in the fridge, wrapped tightly in parchment. Double the recipe—you’ll want seconds.
Why You'll Love This Recipe
- One-Pan Magic: I swear by this recipe when I’m too tired to scrub pots—just slice, roast, and toss. The Russets caramelize right on the sheet pan while the garlic and parsley mingle in the oil, so you’re basically done before the timer goes off.
- Garlic-Parsley Bomb: That first bite? Crispy edges, tender inside, and a punch of fresh parsley cutting through the richness of the olive oil and roasted garlic. It’s the kind of flavor that makes you reach for seconds without even thinking.
- Game for Any Meal: Between us, these potatoes are my secret weapon for lazy Sundays, quick weeknight dinners, or even a picnic. Toss them with grilled chicken for lunch, pile them on a sandwich, or serve them as a side—no one will question why you made them twice in one week.
- Budget-Friendly Staple: Russets are cheap, olive oil lasts forever, and you can stretch this into three meals if you’re smart. Honestly, I’ve lived off these for days when money’s tight—they’re filling, satisfying, and won’t break the bank. Plus, the leftovers reheat like a dream.
Step-by-step instructions for herb-buttered Philadelphia Irish potatoes
Here's how to transform simple russet potatoes into restaurant-worthy wedges with perfectly crisp edges and herby richness.
👨🍳 Step 1: Prep and Season the Potatoes
Cut the 2 lb russet potatoes into 1-inch wedges, keeping the skin on for texture. Arrange them on two baking sheets in a single layer, ensuring they don't overlap—this guarantees even crisping. Drizzle evenly with the 0.5 cup extra-virgin olive oil, tossing gently to coat all surfaces.
Sprinkle the wedges with 1 tbsp of the 1.5 tbsp kosher salt and 0.25 tsp of the 0.5 tsp black pepper. Toss again until every piece is evenly seasoned. Here's the thing—don't skip this step. The salt needs time to penetrate the potatoes for maximum flavor development. Let them rest at room temperature for 30 minutes while you prepare the herb butter.
🍳 Step 2: Make the Herb Butter
In a small bowl, combine the 0.5 cup cold unsalted butter, minced 4 cloves garlic, 1 tbsp lemon juice, remaining 0.5 tbsp kosher salt, remaining 0.25 tsp black pepper, 0.25 cup chopped fresh parsley, 1 tbsp finely chopped fresh rosemary, and the 1 medium yellow onion and 2 medium carrots if using. Mash everything together with a fork until you achieve a chunky, herby paste.
This herb butter is what transforms ordinary potatoes into something extraordinary. The cold butter creates beautiful browned spots when melted, while the garlic and herbs infuse every bite with bright, aromatic flavor. If you're feeling fancy, you can pulse this mixture in a food processor for a smoother texture, but I prefer the rustic texture from mashing by hand.
🔥 Step 3: Roast Until Golden and Crisp
Preheat your oven to 425°F. Arrange the seasoned potato wedges on two baking sheets in a single layer, spacing them about 1 inch apart. Roast for 25 minutes, then carefully flip each wedge using tongs. This is where the magic happens—the first side develops a beautiful golden crust while the second side stays tender.
After flipping, continue roasting for another 15-20 minutes until the edges are deep golden brown and crisp to the touch. You'll know they're perfect when the wedges pull away from the baking sheet easily and the internal temperature reaches 205°F. Real talk: don't overcrowd the pan or they'll steam instead of crisp. If needed, roast in batches for even cooking.
🥘 Step 4: Finish with Herb Butter
Remove the potatoes from the oven and immediately transfer them to a large bowl. Add the herb butter mixture and toss gently but thoroughly to coat each wedge. The residual heat from the potatoes will melt the butter slightly, creating a glossy, flavorful crust. If the butter seems too firm, let it sit at room temperature for 2-3 minutes before tossing.
For maximum flavor impact, let the potatoes rest for 5 minutes after tossing. This allows the herb butter to fully adhere and the flavors to meld together. The contrast between the crispy exterior and tender interior makes these wedges irresistible. Serve immediately while still piping hot—these disappear faster than you can say "Philadelphia Irish potatoes."
Pro Tips For Making Philadelphia Irish Potatoes
- CUT THEM THICK: I learned this the hard way—thin slices mean soggy, uneven potatoes. Aim for ½-inch thick rounds (about 12-15 slices per medium potato) so they cook through without turning to mush. If you’re impatient like me, resist the urge to stack them too tightly in the pan—they’ll steam instead of crisp.
- SALT THE PAN FIRST: More salt than you think goes into the oil. Toss a generous pinch of kosher salt into the hot olive oil before adding the potatoes—it seasons the crust immediately and prevents bland edges. (Yes, even if you’re using fancy extra-virgin olive oil, which burns easier.)
- DON’T SKIP THE REST: After cooking, pile the potatoes onto a plate and cover loosely with foil for 5 minutes. This traps steam and lets them finish cooking evenly—no more dry outsides and raw centers. I know, I know, but trust the process.
- MINCE THAT GARLIC: Whole cloves or rough chop? Nope. Use a knife to finely mince the garlic (or pulse it in a food processor) so it blends into the parsley oil without clumps. My grandmother swore by this, and she was right: you want it to disappear, not chew.
Storing and reheating your leftovers
Refrigerator Storage
Store leftover Philadelphia Irish potatoes in an airtight container for up to 4 days at 40°F or below. The herb butter keeps them moist and flavorful, but the texture will soften slightly.
I like to reheat them quickly to restore that crispy edge—just 5 minutes at 375°F works wonders. 💫
Freezer Storage
For longer storage, freeze these potatoes for up to 3 months. Spread them in a single layer on a baking sheet, freeze until solid, then transfer to a freezer-safe bag.
Thaw overnight in the fridge before reheating. The herb butter stays fresh if you wrap it tightly in parchment paper and store it separately for up to 1 week.
Reheating Perfection
To revive the crispy texture, reheat frozen or refrigerated potatoes on a baking sheet at 425°F for 10-12 minutes, flipping halfway. For stovetop reheating, use a nonstick skillet over medium heat with a splash of water to steam slightly—this prevents drying.
Toss with a little extra herb butter if needed to restore that glossy finish. ✨
Make-Ahead Tips
Double the recipe and roast a batch ahead for gatherings. Store the herb butter separately in the fridge and toss it with the potatoes just before serving.
This keeps the wedges from getting soggy and ensures maximum flavor impact. I often prep these the night before Thanksgiving for a stress-free morning. 💪
Reviving Day-Old Potatoes
If your potatoes lost their crispiness overnight, don’t toss them! Pop them back in the oven at 400°F for 5-7 minutes with a sprinkle of kosher salt and a drizzle of olive oil.
The residual heat will restore that golden crust. This trick saves leftovers from becoming sad, limp wedges. 🔥
Herb Butter Refresh
If the herb butter hardens in the fridge, let it soften at room temperature for 5 minutes before tossing. For extra flavor, add a pinch of smoked paprika or lemon zest when reheating. The butter’s richness elevates every bite, so don’t skimp on this finishing touch. 🌿
Nutrition facts
Frequently asked questions
What makes Philadelphia Irish potatoes different from regular roasted potatoes?
The key difference is the herb butter finish and high-heat roasting technique that creates deep golden, crisp edges while keeping the interior fluffy. Unlike traditional roasted potatoes, these wedges are cut into 1-inch thick pieces and tossed in a rich garlic-herb butter after roasting for that signature restaurant-style flavor.
Can I use Yukon Gold potatoes instead of russets?
Yes, but expect slightly different results. Yukon Golds will be creamier inside with a thinner crisp edge since they have more moisture. For the best texture match, stick with russets, but Yukons work well if you prefer a softer bite. The herb butter still makes them delicious either way!
How do I prevent soggy potatoes when reheating?
Never microwave them—they'll turn mushy! Instead, reheat at 425°F for 10-12 minutes on a baking sheet until crispy again. For extra insurance, add a sprinkle of kosher salt and olive oil before reheating to restore that golden crust. This works for both refrigerated and frozen potatoes.
What's the best way to store the herb butter?
Wrap the herb butter tightly in parchment paper and store it in the fridge for up to 1 week. For longer storage, freeze it in portions for up to 3 months. Let it soften at room temperature for 5 minutes before tossing with reheated potatoes. The cold butter helps maintain that perfect texture.
Can I make this recipe ahead of time for a holiday meal?
Roast the potatoes up to 2 days ahead and store them in an airtight container. Keep the herb butter separate until serving to maintain crispness. Reheat just before serving at 425°F for 10 minutes, then toss with fresh herb butter. This is a lifesaver for Thanksgiving prep!