Crispy Muffin Tin Potato Stacks with Parmesan

Pull golden-brown potato stacks from the oven and the kitchen smells of butter and toasted cheese. Dinner is ready in 55 minutes, each crisp stack lifting clean from the muffin tin. Make them for weeknight dinners or company, since these little towers always vanish first.

Why This Recipe Works

• Slice to a uniform eighth inch: Matching thickness means every round cooks at the same pace. Thin rounds steam through while the tops crisp, so no stack stays raw in the middle.
• Oil the tin before layering: A thin coat of olive oil keeps the edges from sticking. It also helps the outside fry gently to a crisp, so each stack releases clean.
• Parmesan acts as edible glue: Finely grated cheese melts between the potato layers and sets into a lacy, crunchy shell. Fine shreds spread thin, which holds the stack together when you unmold it.
• Warm the garlic gently in butter: Low heat coaxes the garlic and herbs to perfume the butter without browning. Scorched garlic turns bitter, so keep the saucepan on low and stir for under a minute.

Ingredients You'll Need

Russet Potatoes: These starchy, floury potatoes form the base of every stack. Their dry, fluffy flesh crisps beautifully when sliced thin. Yukon Golds work too, but the stacks will be firmer and less crisp at the edges.

Olive Oil: A light coat keeps the stacks from sticking to the tin and helps the edges fry gently. You only need one tablespoon, brushed up the sides of each cup. Neutral vegetable oil is a good swap if you're out of olive oil.

Parmesan Cheese: Finely grated Parmesan melts between the potato layers and bakes into crunchy, lacy edges. Its salty, nutty flavor carries the whole stack. Pecorino Romano is a sharper stand-in, so start with a little less.

Kosher Salt: Coarse flakes season each layer evenly and bring out the potato's natural sweetness. They're easy to pinch and spread. Fine sea salt works, but use slightly less because it's denser.

Black Pepper: Freshly ground pepper adds a warm, sharp bite that cuts through the rich butter. Its aroma fades fast once ground, so grind it right before layering. Pre-ground pepper from a jar works in a pinch, though the flavor will be milder.

Unsalted Butter: Melted butter soaks through the layers and gives the tops their golden shine. Using unsalted lets you control the seasoning alongside the Parmesan. Salted butter works; skip a pinch of the kosher salt if you use it.

Garlic: Three minced cloves perfume the butter with a bright bite that mellows as it bakes. Mince them very finely so the flavor spreads through every layer. Garlic powder can stand in, using about ⅜ teaspoon for three cloves, though the flavor will be softer.

Fresh Parsley: Chopped parsley adds a clean, green freshness that balances the toasty cheese. Flat-leaf parsley has more flavor, so choose it when you can. Dried parsley works as a substitute, but use about two teaspoons instead of two tablespoons.

Fresh Thyme: Thyme leaves bring an earthy, woodsy note that pairs well with butter and potato. Strip the leaves from the woody stems before measuring. Dried thyme works in a pinch, so use about ⅓ teaspoon in place of one teaspoon of fresh leaves.

How to Make It (Step by Step)

Layer thin potato rounds and Parmesan in a muffin tin, drizzle with garlic herb butter, and bake until set. Each stack bakes up golden and crisp at the edges, with a tender, creamy center.

1. Preheat the oven until the indicator light clicks off and the center rack is ready, 15-20 minutes at 400°F / 200°C.

2. Slice the scrubbed russet potatoes into ⅛-inch rounds with a chef's knife until every round is thin, even and flexible, 10-12 minutes at 70°F / 21°C.

3. Coat each cup of the muffin tin with 1 tablespoon olive oil until the metal glistens all the way up the sides, 2-3 minutes at 70°F / 21°C.

4. Layer potato rounds, grated Parmesan, kosher salt and black pepper in each cup until the stacks reach the rim, 8-10 minutes at 70°F / 21°C.

5. Melt 4 tablespoons unsalted butter in a small saucepan over low heat until fully liquid and just warm, 2-3 minutes at 180°F / 82°C.

6. Stir in the minced garlic, chopped parsley and thyme leaves until fragrant and evenly flecked, 30-45 seconds at 180°F / 82°C.

7. Spoon the herb butter evenly over each stack, letting it seep between the layers until the tops glisten, 1-2 minutes at 70°F / 21°C.

8. Bake until the tops turn golden-brown and a knife slides easily through the center, 25-30 minutes at 400°F / 200°C.

Recipe Notes

• Storage: Keep leftover stacks in an airtight container in the fridge for up to 3 days. They freeze poorly, because the potatoes turn soft and mealy. Reheat at 375°F for 8 to 10 minutes until the edges crisp again.

• Key substitution: No fresh thyme on hand? Use ⅓ teaspoon dried thyme instead. Dried herbs are concentrated, so the smaller amount keeps the butter from tasting dusty.

• Make-ahead tip: Mix the garlic herb butter up to two days early and refrigerate it. Rewarm it gently until just liquid before spooning it over the stacks.

• Common mistake: Unmolding stacks straight from the oven. Let them rest in the tin for 5 minutes so the cheese sets and they release cleanly.

Serving size: 1 portion · Calories: 215 · Total Fat: 12g · Saturated Fat: 7g · Carbs: 19g · Fiber: 2g · Sugar: 1g · Protein: 9g · Sodium: 340mg

Tips and Tricks

• Equipment: Use a 12-cup metal muffin tin: Metal cups conduct heat quickly, so the edges crisp while the centers turn tender. Silicone softens and loses the stack's shape.

• Temperature precision: Preheat to a full 400°F / 200°C: Wait until the oven is fully hot before the tin goes in. A cool oven steams the potatoes and leaves pale, soggy stacks.

• Common mistake: Slicing the potatoes unevenly: Thick and thin rounds cook at different speeds. Aim for a steady eighth inch so every layer turns golden at the same time.

• Flavour upgrade: Add a pinch of lemon zest to the herb butter: Finely grated lemon zest brightens the garlic and parsley. Stir it in after the butter comes off the heat.

• Texture tip: Spread the Parmesan right to the cup walls: Cheese pressed against the edges melts into a lacy, crunchy rim. That rim lifts cleanly when the stacks cool.

Frequently Asked Questions

Can I make these potato stacks dairy-free without losing their crispy texture?

Swap the 4 tablespoons butter for 4 tablespoons plant-based butter, and replace the ¾ cup Parmesan with ¾ cup vegan Parmesan-style shreds. Vegan shreds melt less, so expect a slightly softer crust, but the stacks will still crisp at the edges.

How should I store and reheat leftover potato stacks so they stay as crisp as possible?

Refrigerate leftover stacks in an airtight container for up to 3 days, then reheat them on a baking sheet at 400°F for 8 to 10 minutes. Avoid the microwave, which turns the crust soft and chewy.

Why are my potato stacks pale on top and still raw in the center?

Your rack is probably too low, or the herb butter pooled at the bottom of the cups. Move the rack to the center position, spoon any pooled butter back over the tops, and bake until the edges are deep golden and a knife slides through.

What to Serve With This

• Lemony Arugula Salad: Peppery greens dressed in sharp lemon juice cut through the buttery richness and make every bite feel lighter.
• Garlicky Lemon Green Beans: Blanched green beans tossed with lemon zest keep their snap, a bright crunch next to the golden, cheesy stacks.
• Creamy Dill Cucumber Salad: Cool cucumber ribbons in tangy sour cream offer a creamy, refreshing counterpoint to the crisp, toasty cheese edges.
• Creamy Cauliflower Mash: Velvety, smooth cauliflower mash soothes the palate between bites of crunchy, cheesy shell.