30-Minute Miso Glazed Air Fryer Sweet Potatoes

Tender sweet potato pieces get crispy edges in the air fryer, then tossed in a savory-sweet miso glaze made with avocado oil and agave. The umami-rich miso paste balances the natural sweetness of the potatoes while sesame seeds add crunch. Perfect as a side dish for weeknight dinners or as part of a plant-based meal. This quick preparation transforms simple sweet potatoes into something special with minimal effort and maximum flavor impact.
Ingredients
- 1 white sweet potato, cut in pieces 1/2 inch thick
- 5 tablespoons avocado oil, divided
- ¼ teaspoon kosher salt
- 1 tablespoon white miso pastered miso paste1:1umami
stronger flavor
- 1 tablespoon agave nectar
- ½ teaspoon sesame seeds
- cilantro or chopped scallion, for garnish(optional)
Instructions
- 1
Preheat the air fryer to 400F
- 2
Cut the sweet potato and place in a large bowl
- 3
Add avocado oil and salt to the bowl with the sweet potato and toss
- 4
Arrange in the air fryer basket or on the tray in a single layer
- 5
Air fry for 15 minutes, tossing halfway through cooking
- 6
While the potatoes are air frying, whisk together the remaining avocado oil, miso paste, and agave in a large bowl
- 7
After the potatoes are done frying, toss the potatoes in the bowl with the miso mixture
- 8
Toss until the potatoes are coated and transfer to a plate or bowl
- 9
Top with sesame seeds and cilantro leaves
Tips
Cut sweet potato pieces evenly to ensure uniform cooking and crispy edges throughout.
Don't skip the halfway toss - this ensures all sides get properly crispy in the air fryer.
Toss potatoes in the miso glaze while they're still hot for better coating adhesion.
Good to Know
Store leftovers in refrigerator for up to 3 days in airtight container
Can prep sweet potatoes up to 1 day ahead, store covered in refrigerator
Serve immediately while warm for best texture and flavor
Common Mistakes
Cut pieces evenly to avoid some burning while others stay undercooked
Don't overcrowd the air fryer basket to ensure proper air circulation
Substitutions
Vegan Options
General Alternatives
stronger flavor
FAQ
Can I use regular potatoes instead of sweet potatoes?
Yes, but cooking time may vary slightly. Regular potatoes will have less natural sweetness to balance the savory miso glaze.
What if I don't have an air fryer?
Roast in a 425F oven for 20-25 minutes, flipping once halfway through until edges are crispy and potatoes are tender.
How long will these keep in the refrigerator?
Store covered for up to 3 days. Reheat in air fryer or oven to restore crispiness before serving.