Crispy Piri-Piri Potato Stacks

We're taking the humble potato and elevating it into something truly special with a hit of Piri-Piri heat and plenty of garlic-thyme butter. These crispy potato stacks are all about that ‘best of both worlds’ texture we're talking crispy edges that give way to a center so buttery and tender it practically melts.

Baking them in jumbo muffin tins creates these impressive, towering layers that look like a million bucks but are surprisingly simple to pull off. Whether you're levelling up your Sunday roast or looking for that one side dish that'll have everyone asking for the recipe, these Piri-Piri stacks are the answer.

Why We Love This Recipe

There is something incredibly satisfying about a side dish that looks like a work of art but eats like pure comfort food. Here's why these potato stacks have a permanent spot in our rotation:

• The Texture Contrast: We call this the “best of both worlds” bite. A rich, decadent center that tastes like the best part of a gratin, surrounded by crispy edges.
• The Piri-Piri Punch: While most potato stacks play it safe with just salt and pepper, the Piri-Piri seasoning adds a beautiful depth and a subtle, lingering warmth.
• Crowd-Pleasing Presentation: Using the jumbo muffin tins gives these a towering, architectural look. When you flip them over to reveal that golden, thyme-crusted bottom, it's an instant “wow” moment for your guests.
• Stress-Free Prep: Being able to slice and soak the potatoes a day ahead means you aren't stuck at the mandoline when your guests arrive. It's sophisticated hosting made simple.

Ingredients

• Russet or sweet potatoes
• Butter
• Garlic cloves, minced
• Fresh thyme & sprigs for garnish
• Piri-piri seasoning
• Coarse salt
• Parmesan cheese

See the recipe card below for exact quantities.

Instructions

Prep the Oven & Tins

Preheat your oven to 380°F. Generously grease two 6-cup jumbo (extra-large) muffin tins. These larger wells are ideal for the wider diameter of Russet slices; however, standard tins will work for smaller potatoes.

The Starch-Removal Process

Peel the potatoes and use a mandoline to create uniform, thin rounds (about ⅛-inch).

To ensure maximum crispiness, submerge the slices in a bowl of ice-cold water for at least 10 minutes (or up to 24 hours). This removes surface starch that can lead to sogginess. Drain and thoroughly pat dry with a clean tea towel before proceeding.

Infuse the Piri-Piri Butter

Melt the butter in a small saucepan over medium-low heat. Stir in the minced garlic, chopped thyme, piri-piri seasoning, and salt. Allow the mixture to steep for 2-3 minutes to fully bloom the spices, then remove from heat. In a large bowl, toss the dried potato slices with this infused butter until every surface is coated.

Assemble the Stacks

Place one small thyme sprig at the bottom of each muffin cup. Begin layering the potato slices, starting with the smaller rounds. To create structural richness, add a pinch of grated Parmesan after every 4 slices. Continue stacking until the potatoes sit slightly higher than the rim of the cup, as they will compress significantly during baking.

Brush off any excess Parmesan that is on the tray, then wrap each tray tightly with foil.

The Two-Stage Bake

Wipe away any stray cheese from the top of the tin, then seal the trays tightly with foil.

The Tenderize Phase: Bake for 30-35 minutes at 380°F.

The Crisping Phase: Remove the foil and increase the heat to 430°F. Roast for another 10-12 minutes. You are looking for deep golden, crispy edges and a tender center. Lift a stack carefully with a small spatula to check that the bottoms are golden brown and crisp. If required, return to the oven for a few minutes more to get the desired crispiness.

*Time will vary based on the thickness of potato slices, the height of stacks and individual oven temperatures.

Release and Serve

Let the stacks rest for 2 minutes before removing. Carefully invert the tins onto a platter to showcase the golden, thyme-infused bottoms.

Preparation Hacks (Make-Ahead)

• The Night Before: Slice and submerge the potatoes in cold water; store them in the fridge to prevent browning and pull out starch. You can also prepare the Piri-Piri butter ahead of time and store it in an airtight container.
• Assembly Day: Ensure the potatoes are bone-dry before tossing with the (re-melted) butter to guarantee the best texture.

FAQ’s

📖 Recipe

Crispy Piri-Piri Potato Stacks

We're taking the humble potato and elevating it into something truly special with a hit of Piri-Piri heat and plenty of garlic-thyme butter. These crispy potato stacks are all about that 'best of both worlds' texture we're talking crispy edges that give way to a center so buttery and tender it practically melts.

5 from 2 votes

Print Recipe Pin Recipe

Prep Time 30 minutes mins

Cook Time 45 minutes mins

Total Time 1 hour hr 15 minutes mins

Course Side Dish

Cuisine French-Inspired Fusion, Portuguese

Servings 12 stacks

Cook ModePrevent your screen from going dark

Ingredients

  

1x2x3x

• 3 lbs Russet or sweet potatoes choose smaller potatoes if possible
• ½ cup butter
• 4 garlic cloves minced
• 1 tablespoon fresh thyme leaves
• 2 teaspoon piri-piri seasoning
• ½ teaspoon coarse salt
• ¾ cup Parmesan cheese freshly grated
• 12 small fresh thyme sprigs for garnish, approx. 1-inch

Instructions

 

Prep the Oven & Tins

• Preheat your oven to 380°F. Generously grease two 6-cup jumbo (extra-large) muffin tins. These larger wells are ideal for the wider diameter of Russet slices; however, standard tins will work for smaller potatoes.

The Starch-Removal Process

• Peel the potatoes and use a mandoline to create uniform, thin rounds (about ⅛-inch). To ensure maximum crispiness, submerge the slices in a bowl of ice-cold water for at least 10 minutes (or up to 24 hours). This removes surface starch that can lead to sogginess. Drain and thoroughly pat dry with a clean tea towel before proceeding.

Infuse the Piri-Piri Butter

• Melt the butter in a small saucepan over medium-low heat. Stir in the minced garlic, chopped thyme, piri-piri seasoning, and salt. Allow the mixture to steep for 2-3 minutes to fully bloom the spices, then remove from heat. In a large bowl, toss the dried potato slices with this infused butter until every surface is coated.

Assemble the Stacks

• Place one small thyme sprig at the bottom of each muffin cup. Begin layering the potato slices, starting with the smaller rounds. To create structural richness, add a pinch of grated Parmesan after every 4 slices. Continue stacking until the potatoes sit slightly higher than the rim of the cup, as they will compress significantly during baking.

The Two-Stage Bake

• Wipe away any stray cheese from the top of the tin, then seal the trays tightly with foil.
• The Tenderize Phase: Bake for 30-35 minutes at 380°F.
• The Crisping Phase: Remove the foil and increase the heat to 430°F. Roast for another 10-12 minutes. You are looking for deep golden, crispy edges and a tender center. Lift a stack carefully with a small spatula to check that the bottoms are golden brown and crisp. If required, return to the oven for a few minutes more to get the desired crispiness.
• *Time will vary based on the thickness of potato slices, the height of stacks and individual oven temperatures.

Release and Serve

• Let the stacks rest for 2 minutes before removing. Carefully invert the tins onto a platter to showcase the golden, thyme-infused bottoms.

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Notes

Preparation Hacks (Make-Ahead)

• The Night Before: Slice and submerge the potatoes in cold water; store them in the fridge to prevent browning and pull out starch. You can also prepare the Piri-Piri butter ahead of time and store it in an airtight container.
• Assembly Day: Ensure the potatoes are bone-dry before tossing with the (re-melted) butter to guarantee the best texture.

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