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Air Fryer Crispy Smashed Potatoes

Baby Yukon Gold potatoes boiled until perfectly tender,smashed flat for maximum surface area, then air fried athigh heat until shatteringly crispy with a parmesan crust.The best side dish for any dinner table — ready in 35 minutes
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Prep Time 5 minutes
Cook Time 30 minutes
1 minute
Total Time 35 minutes
Servings: 4
Course: Side Dish
Cuisine: American
Calories: 210
Ingredients Equipment Method Notes

Ingredients
  

Main
  • 1.5 lbs baby Yukon Gold potatoes golf ball sized, similar size
  • 2 tbsp extra virgin olive oil or avocado oil spray
  • 1 tbsp kosher salt for boiling water
  • 1 tsp kosher salt for seasoning
  • 1 tsp garlic powder
  • 1/2 tsp smoked paprika
  • 1/2 tsp freshly ground black pepper
  • 1/4 cup Parmigiano-Reggiano freshly grated
  • 1 tbsp fresh rosemary or thyme chopped (optional)
For Serving
  • 1/2 cup sour cream or Greek yogurt
  • 2 tbsp fresh chives chopped
  • 1 small pinch flaky sea salt Maldon preferred

Equipment

  • 1 Air Fryer (5.8 qt basket-style recommended)
  • 1 Large pot for boiling
  • 1 Flat-bottomed glass or measuring cup for smashing

Method
 

  1. Air Fry — The Two-Stage Crisp

    Place seasoned potatoes in the air fryer basket in a strict single layer with space between each one. If your air fryer is small, work in two batches rather than crowding.
    Cook at 400°F / 204°C for 15 minutes. At the halfway point — around 7 to 8 minutes — open the basket and spray the tops lightly with a second coat of oil. This second oil application replenishes what has already absorbed into the starch and gives the final crust that deep golden color rather than a pale, dry finish.
    After 15 minutes the potatoes should be deeply golden with visibly crispy, slightly charred edges. If your air fryer runs slightly cool, add 2 to 3 minutes.

  2. The Parmesan Finish — Two Minutes to Extraordinary

    Open the basket at the 15-minute mark and working quickly, sprinkle a generous pinch of freshly grated Parmigiano-Reggiano over each potato. Close the basket and cook for 2 more minutes.
    In those two minutes, the parmesan melts directly into the hot crust, crisps at the edges, and fuses with the potato surface into a savory, golden layer that adds both flavor and an additional textural dimension to every bite.
    Total cook time: 17 minutes.
    Remove from the air fryer and plate immediately. Finish with a tiny pinch of flaky sea salt while the potatoes are still hot — the salt crystals stay on the surface rather than dissolving, adding small pops of salinity that elevate every bite. Add fresh rosemary or thyme if using.
    Serve with sour cream or Greek yogurt alongside, scattered with chopped fresh chives.
  3. Final Look

  4. 💡 Extra Tips for Maximum Crispiness

    These are the small details that separate a good batch from a genuinely great one.
    Use avocado oil spray over olive oil spray when you want extra crispiness. Avocado oil's higher smoke point means it stays in its optimal frying state longer inside the hot air fryer rather than beginning to break down.
    Do not skip the second oil spray at the halfway mark. The first coat absorbs into the starch as the potatoes begin to cook. The second coat is what actually fries the outer surface in the final minutes. Both are necessary.
    Size consistency matters. Try to select potatoes that are similar in size — roughly golf ball sized — so they all reach the correct internal temperature at the same time. Mixing very small and very large potatoes in the same batch means some will be perfect while others are either undercooked or over-crisped.
    Fresh parmesan only. Pre-grated parmesan from a canister contains cellulose powder that prevents proper melting and crisping. Freshly grated from a wedge melts into the crust in seconds.
    Serve immediately. Crispy smashed potatoes lose their crunch as they sit and cool. Have everything else on the table ready before the potatoes come out of the air fryer.

Notes

- Use baby Yukon Gold potatoes for best flavor and crispiness.
- Do not skip the 5-minute drying step after boiling.
- Always apply oil in two stages — before cooking and at the halfway point.
- Add parmesan only in the final 2 minutes to prevent burning.
- Never overcrowd the air fryer — cook in batches if needed.
- Serve immediately for maximum crunch.
- Reheat leftovers in air fryer at 390°F for 4 to 5 minutes only.
- For sweet potatoes reduce temperature to 375°F and skip parmesan.