Potato Gratin with Anaheim Peppers and Parmigiano

Potato Gratin with Anaheim Peppers and Parmigiano

There’s something about a bubbling, golden potato gratin that always feels like home.

This one came together when we had a few Anaheim peppers left from another dish, and we wanted something rich and comforting. The result is a modern, slightly spicy take on a classic gratin, creamy, layered Yukon potatoes with the gentle heat of gochujang and the sharp, nutty edge of Parmigiano Reggiano. It’s cozy and familiar, but with just enough personality to make people stop and ask what’s in it.

Gratin-style potato dishes have deep roots in French cooking, but this version leans more toward the West Coast pantry—fresh herbs, roasted peppers, and a little gochujang for depth. The gochujang brings warmth and umami without being fiery, while the Anaheim peppers give it a sweet backbone that ties the whole dish together.

This potato gratin is approachable, prep-ahead friendly, and built for sharing. It works just as well at a holiday table as it does next to a roasted chicken on a Sunday night. The rosemary adds a woodsy aroma, the parsley keeps it fresh, and the Parmigiano binds everything in that perfectly salty, creamy base.

What sets this version apart is how it handles flavor. The cream doesn’t just coat the potatoes—it’s infused with garlic, shallots, and the slight smokiness of Anaheim peppers before thickening with Parmigiano. The top layer of cheese and panko gets crisp while the inside stays lush. If you want a casserole that balances comfort and technique, this one does it naturally.

Serve it with roasted meats, grilled vegetables, or as a Thanksgiving side. It’s a dish that feels indulgent but still balanced, and it’s a great example of how a few tweaks can completely refresh a classic.

Main Ingredients

Yukon Gold Potatoes – Their buttery texture and balanced starch content make them perfect for gratins. They hold their shape while becoming tender and creamy, unlike russets which can fall apart. Slice them evenly—1/16 inch thick—for consistent cooking.

Anaheim Peppers – Mild, slightly sweet, and deeply aromatic once cooked. They add a subtle earthiness and a hint of warmth that sets this dish apart. 

Gochujang – A Korean chili paste that adds complex sweetness, umami, and mild heat. It gives the cream sauce depth and color without overwhelming spice. Look for authentic gochujang made with fermented soy and rice for the best balance.

Parmigiano Reggiano – Aged, nutty, and salty, this cheese does double duty: thickening the sauce and crisping up the crust. Freshly grated Parmigiano melts smoother and tastes more balanced than pre-grated varieties.

Fresh Rosemary & Parsley – The rosemary brings a piney backbone that works beautifully with the cream and peppers, while parsley keeps the flavor light and clean. The combination brings balance to this rich dish.

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Potato Gratin with Anaheim Peppers and Parmigiano

Recipe by Richard and Lindsay

0.0 from 0 votes

Course: SidesCuisine: AmericanDifficulty: Easy

Servings: 6

1/2x 1x 2x

6

servings

Prep time

25

minutes

Cooking time

1

hour 

Resting time

20

minutes

Total time

1

hour 

45

minutes

There’s something about a bubbling, golden potato gratin that always feels like home.

Cook Mode

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Ingredients

• 2 lbs yukon gold potatoes

• 2 tablespoons salted butter

• 4 garlic cloves, minced

• 1 shallot, minced

• 1 Anaheim pepper, halved and sliced thin

• 2 cups heavy cream

• 1 1/2 teaspoons chopped fresh rosemary

• 1/2 cup chopped fresh parsley

• 2 teaspoons gochujang

• 2 teaspoons sriracha

• 1/2 teaspoon black pepper, freshly ground

• 2 teaspoons kosher salt

• 1 3/4 cup Parmigiano Reggiano, (1 cup finely grated for the sauce, ¾ finely grated for topping)

• 3/4 cup panko breadcrumbs

• Butter, for greasing the dish

Method

• Preheat the Oven and Prep the Casserole Dish: Preheat your oven to 350°F and grease an 8×8 (about 7-cup/1.75-quart) casserole dish with butter.
• Building the Base: In a large saucepan, melt the butter over medium heat. Add the minced garlic, minced shallot, and sliced Anaheim pepper, and cook until fragrant and translucent, about 3–4 minutes. Stir in the heavy cream, gochujang, sriracha, black pepper, and salt. Bring the mixture to a gentle simmer, stirring occasionally.
• Combining the Ingredients: Add the rosemary and parsley, then stir in 1 cup of Parmigiano to thicken the sauce slightly. With a mandoline, slice the potatoes extremely thin (about 1/16 inch or thinner) directly into the cheese mixture, stirring to coat them evenly. Let the mixture come to a simmer again for 5 minutes, just until the potatoes begin to soften.

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• Baking the Gratin: Transfer the entire mixture to the prepared casserole dish, spreading evenly. Combine the remaining Parmigiano with the panko and sprinkle over the top. Cover and bake for 40 minutes, then uncover and bake an additional 20 minutes, or until the top is golden and the potatoes are tender when pierced with a skewer.

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• Finishing & Serving: Let the gratin rest for 20 minutes before serving so the layers can set. Serve warm alongside roasted chicken, grilled steak, or your holiday spread

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• Storage & Reheating: Store leftovers in an airtight container in the refrigerator for up to 4 days. Reheat covered at 325°F until warmed through, about 20 minutes.

Field Notes

• This Anaheim Potato Gratin fits easily into a fall or winter table, pairing especially well with roasted meats, holiday mains, or grilled fish. For a twist, swap the Anaheim for poblano or mix in roasted corn for a sweet contrast.