The crispiest duck fat roasted potatoes (with a homemade garlic confit mayo)
The crispiest duck fat roasted potatoes (with a homemade garlic confit mayo) is a medium European recipe that serves 4. 250 calories per serving. Recipe by Daen's Kitchen on YouTube.
Prep: 40 min | Cook: 1 hr 7 min | Total: 2 hrs 2 min
Cost: $33.40 total, $8.35 per serving
Ingredients
- 2 lb All-Purpose Potatoes (sbago or similar all‑purpose variety, peeled and cut into 2‑inch chunks)
- 2.5 tbsp Kosher Salt (for boiling water, adds flavor throughout the potato)
- 5 Garlic Cloves (peeled, lightly smashed; added to boiling water)
- 1/2 cup Duck Fat (high‑smoke‑point animal fat for ultimate crispness)
- 1 tbsp Olive Oil (extra virgin, added to the duck fat for flavor)
- 2 tbsp Fresh Rosemary (finely chopped, tossed with potatoes at the end)
- 4 Garlic Cloves (for finishing) (minced, added to hot oil after roasting)
- 1 Large Egg (pasteurized, room temperature, for mayonnaise)
- 3/4 cup Neutral Oil (e.g., vegetable or canola oil, for mayonnaise)
- 1/4 cup Olive Oil (extra virgin, blended into mayonnaise)
- 2 Garlic Comfit Cloves (soft, mashed into mayo for deep garlic flavor)
- 1 tsp Dijon Mustard (adds tang and stabilizes emulsion)
- 1 tsp Lemon Juice (freshly squeezed, brightens mayo)
- to taste Sea Salt (finishing salt for mayo)
Instructions
Peel and Chunk Potatoes
Peel the all‑purpose potatoes and cut them into roughly 2‑inch chunks (about quarter‑size).
Time: PT10M
Rinse and Remove Starch
Place the cut potatoes in a large bowl, cover with cold water and swirl with your hand until the water turns cloudy. Drain, refill with fresh cold water and repeat until the water runs clear.
Time: PT5M
Boil Potatoes Until Fork‑Tender
Transfer the rinsed potatoes to a large pot, cover with cold water, add 2½ tbsp kosher salt and the 5 smashed garlic cloves. Bring to a boil, then reduce to a simmer and cook 22 minutes, or until a fork slides in with little resistance.
Time: PT22M
Steam‑Dry Potatoes
Drain the potatoes in a colander, then spread them on a clean kitchen towel. Cover with another towel and let sit for 10 minutes to steam off excess moisture.
Time: PT10M
Preheat Oven and Fat
Place the deep‑dish roasting pan in the cold oven, add the ½ cup duck fat and 1 tbsp olive oil, and preheat to 220 °C (428 °F) for 8 minutes until the fat is sizzling hot.
Time: PT8M
Temperature: 220°C
Sear Potatoes in Hot Fat
Carefully remove the hot pan, add the dried potatoes in a single layer, and toss gently to coat. You should hear a loud sizzle.
Time: PT2M
Temperature: 220°C
Roast Until Golden and Crispy
Return the pan to the oven and roast for 45 minutes, turning the potatoes with a slotted spoon every 12 minutes so all sides brown evenly.
Time: PT45M
Temperature: 220°C
Prepare Garlic Mayonnaise
While the potatoes roast, combine the egg, ¾ cup neutral oil, ¼ cup olive oil, 2 mashed garlic confit cloves, 1 tsp Dijon mustard, 1 tsp lemon juice, and a pinch of sea salt in a glass jar. Insert the immersion blender, keep the blade at the bottom, and blend for 30‑60 seconds until a thick, smooth emulsion forms.
Time: PT1M
Finish with Garlic & Rosemary
When the potatoes are golden, remove the pan, sprinkle the minced 4 garlic cloves and 2 tbsp chopped rosemary over the hot potatoes, and give a quick toss so the aromatics lightly cook in the residual heat.
Time: PT2M
Nutrition Facts
- Calories
- 250
- Protein
- 3 g
- Carbohydrates
- 30 g
- Fat
- 12 g
- Fiber
- 3 g
Dietary info: Contains duck fat, Contains egg, Gluten‑Free
Allergens: Egg, Mustard
Ingredient Substitutions
- Instead of All-Purpose Potatoes: Yukon Gold potatoes, Russet potatoes
- Instead of Kosher Salt: Sea salt
- Instead of Garlic Cloves: Garlic powder (1/2 tsp)
- Instead of Duck Fat: Goose fat, Lard, Vegetable oil (high smoke point)
- Instead of Olive Oil: Avocado oil
- Instead of Fresh Rosemary: Thyme, Sage
- Instead of Garlic Cloves (for finishing): Garlic powder (1/2 tsp)
- Instead of Large Egg: Pasteurized egg yolk
- Instead of Neutral Oil: Sunflower oil
- Instead of Olive Oil: Avocado oil
- Instead of Garlic Comfit Cloves: Roasted garlic (2 cloves)
- Instead of Dijon Mustard: Whole grain mustard
- Instead of Lemon Juice: White wine vinegar (1 tsp)
- Instead of Sea Salt: Kosher salt
Equipment Needed
- Chef's Knife
- Cutting Board
- Large Mixing Bowl
- Colander
- Large Pot or Dutch Oven
- Deep‑Dish Roasting Pan
- Oven
- Kitchen Towel
- Slotted Spoon
- Immersion (Stick) Blender
- Glass Jar with Lid
- Measuring Cups and Spoons
Critical Steps — Do Not Skip
- Boil potatoes until fork‑tender but not falling apart
- Thoroughly dry potatoes before roasting
- Preheat duck fat until piping hot
- Sear potatoes in hot fat for an instant sizzle
- Turn potatoes regularly during roasting
- Emulsify mayonnaise without moving the blender too early
- Add garlic and rosemary at the end to preserve flavor
Chef Tips from the Video
- Rough up the boiled potatoes with a spoon to create extra edges for crispness.
- Using duck fat gives a richer flavor; goose fat works as a more affordable alternative.
- For extra aroma, add a pinch of smoked paprika to the mayo.
Troubleshooting
Potatoes turn out soggy instead of crispy.
Make sure the potatoes are completely dry before adding to hot fat, and preheat the fat until it sizzles. Avoid overcrowding the pan; roast in batches if necessary.
Mayonnaise separates or looks watery.
Start blending with the blade at the bottom of the jar and add oil very slowly. If it breaks, add a teaspoon of warm water and blend again.
Garlic burns during the final toss.
Remove the pan from the oven before adding garlic and rosemary, and toss quickly; the residual heat is enough to soften the garlic without burning.
Storage
Refrigerator: Store leftover potatoes in an airtight container for up to 2 days; reheat in a hot oven to regain crispness.
Freezer: Not recommended – texture will become soggy.
Room temperature: Do not leave at room temperature for more than 2 hours due to the duck fat.
Make-Ahead Tips
- Boil and dry the potatoes up to 24 hours ahead; keep them refrigerated uncovered on a tray.
- Prepare the garlic mayonnaise a day in advance; store in a sealed jar in the fridge.
- Pre‑chop garlic and rosemary and store in a small airtight container.
Frequently Asked Questions
What is the cultural significance and history of crispy roasted potatoes in British and European cuisine?
Crispy roasted potatoes are a staple of British Sunday roasts and French bistro sides. The technique of par‑boiling, drying, and finishing in animal fat dates back to 19th‑century French cuisine, where duck or goose fat was prized for its flavor and high smoke point.
What traditional regional variations of roasted potatoes exist in European cuisine?
In France, potatoes are often roasted in duck or goose fat with herbs like thyme. In the UK, they are typically roasted in beef dripping or oil with rosemary. In Spain, "patatas bravas" are fried and served with a spicy tomato sauce, showing a different flavor profile.
How are crispy roasted potatoes traditionally served in British Sunday roast meals?
They are placed alongside roasted meat, vegetables, and gravy on the plate. The potatoes are golden, crunchy on the outside, fluffy inside, and are sometimes drizzled with a little extra fat just before serving.
What occasions or celebrations are crispy roasted potatoes associated with in European culture?
In the UK, they are a key component of the Sunday roast and holiday meals such as Christmas dinner. In France, duck‑fat potatoes often accompany festive dishes like confit de canard or roasted lamb during family gatherings.
What authentic ingredients are essential for traditional duck‑fat roasted potatoes versus common substitutes?
Authentic recipes call for high‑quality duck fat, all‑purpose potatoes (such as sbago or Yukon Gold), fresh rosemary, and plenty of salt. Substitutes include goose fat, lard, or a high‑smoke‑point neutral oil, and other herb blends like thyme or sage.
What are the most common mistakes to avoid when making crispy duck‑fat roasted potatoes?
Common errors include not drying the potatoes enough, using cold fat which prevents the initial sizzle, overcrowding the pan, and turning the potatoes too early before a crust forms. Each mistake reduces crispness.
Why does this recipe call for boiling the potatoes before roasting instead of roasting raw potatoes?
Boiling softens the interior and creates a rough, starchy surface that crisps quickly when tossed in hot fat. Raw potatoes lack that pre‑cooked exterior and often end up unevenly browned.
Can I make the garlic mayonnaise ahead of time and how should I store it?
Yes, the garlic mayo can be prepared up to a week in advance. Store it in a sterilized glass jar in the refrigerator, sealed tightly. Give it a quick stir before serving.
What texture and appearance should I look for to know the potatoes are perfectly crispy?
The potatoes should have deep golden‑brown, crackly edges with a fluffy, almost creamy interior. When tapped, the crust should sound hollow, and the surface should feel crisp to the touch.
What does the YouTube channel Daen's Kitchen specialize in?
The YouTube channel Daen's Kitchen focuses on straightforward, technique‑driven home cooking tutorials that emphasize flavor, texture, and practical kitchen tips for everyday cooks.
How does the YouTube channel Daen's Kitchen's approach to European side‑dish cooking differ from other cooking channels?
Daen's Kitchen combines classic European techniques—like using animal fats and precise drying steps—with clear, step‑by‑step explanations and a focus on achieving restaurant‑quality results at home, whereas many channels favor quicker, less detailed methods.
Last updated: August 29, 2026
