These air fryer butternut squash cubes get caramelized edges and tender centers in 18-20 minutes at 380°F. Cut the squash into 1-inch pieces, shake once halfway, and finish with one of three flavors: garlic sage with pine nuts, cinnamon maple, or rosemary herb.
Air Fryer Butternut Squash Cubes At A Glance
- ✅ Recipe Name: Crispy Air Fryer Butternut Squash Cubes (3 Flavors)
- 🕒 Ready In: ~30 minutes (20 minutes with pre-cut cubes)
- 👪 Serves: 4 (¾ cup each)
- 🍽 Calories: ~107 per serving (classic flavor)
- 🔥 Cook Time + Temp: 380°F (190°C) for 18 to 20 minutes (1-inch cubes)
- 🥣 Main Ingredients: Butternut squash, olive oil, salt, and pepper, plus your choice of garlic, sage, and pine nuts; maple syrup and cinnamon; or fresh rosemary
- 📖 Dietary Info: Gluten-free, dairy-free, vegan, and refined-sugar-free
- ⭐ Why You'll Love It: Caramelized edges, tender centers, and three flavors I rotate all fall and winter. It's an easy, healthy side that goes with almost any protein.
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Why I Make Butternut Squash in the Air Fryer
I've made this butternut squash dozens of times, with both fresh and frozen squash, and the air fryer is how I cook it now. The cubes caramelize on the edges and stay tender inside in about 20 minutes, roughly half the time of roasting in the oven.
Testing taught me what actually makes or breaks it. Moisture is the number one reason squash turns soft instead of golden, so I pat every batch dry before it goes in. Cube size matters too: ¾-inch pieces are done in 15 to 16 minutes, while 1-inch cubes need closer to 20. And the fresh herbs and pine nuts go on after cooking, so nothing burns.
My go-to flavor is garlic sage with toasted pine nuts, but I rotate cinnamon maple and rosemary herb all fall and winter. I also keep a bag of frozen squash on hand for busy weeknights. If you love air fryer vegetables as much as I do, try my crispy air fryer parmesan zucchini, air fryer carrot fries, or air fryer sweet potato cubes next.
Jump to:
- Air Fryer Butternut Squash Cubes At A Glance
- Why I Make Butternut Squash in the Air Fryer
- Ingredients You'll Need
- How to Peel and Cube Butternut Squash (or Use Pre-Cut)
- How to Make Crispy Air Fryer Butternut Squash Cubes (Step-by-Step)
- Recipe Video
- How Long to Air Fry Butternut Squash Cubes?
- Can You Air Fry Frozen Butternut Squash?
- Flavor Ideas and Substitutions
- Tips for Caramelized Squash Cubes
- What to Serve with Air Fryer Butternut Squash
- Storing, Reheating, and Meal Prep
- Air Fryer Butternut Squash Cubes FAQs
- More Air Fryer Vegetable Recipes
- 📖 Recipe
- 💬 Comments
⭐️⭐️⭐️⭐️⭐️
BEST BEST BEST recipe! Tati, you really outdid yourself with this one. I love your air fryer recipes, but the sage and pine nut topping on this squash is awesome. Love it!
- Christine
Ingredients You'll Need
This recipe starts with 4 basic ingredients: butternut squash, olive oil, salt, and pepper. Then add one of three flavors: garlic, sage, and pine nuts; maple syrup and cinnamon; or fresh rosemary. Here is everything you need:
Base Ingredients
- Butternut squash: One medium squash gives you about 3 cups of 1-inch cubes. Pre-cut squash from the store saves time, but the pieces are often uneven, so I trim the big ones down to about 1 inch so everything cooks at the same rate; just like my carrot and butternut squash soup recipe.
- Olive oil: Just a tablespoon coats all the cubes and helps them caramelize. Avocado oil or melted coconut oil works too.
- Salt and pepper: Season before cooking, then taste and add a pinch more at the end if needed.
Garlic Sage Pine Nut
- Garlic and fresh sage: I sauté these in a small pan while the squash cooks, instead of putting them in the air fryer, so the garlic doesn't burn. If you only have dried sage, ½ teaspoon works.
- Pine nuts: Toast them in the same pan with the garlic and sage until lightly golden. Keep an eye on them, because they go from golden to burnt fast. For a nut-free version, use my crispy air fryer pumpkin seeds instead.
Cinnamon Maple
- Maple syrup and cinnamon: Use pure maple syrup, not pancake syrup. It gives the squash a warm, lightly sweet, caramelized finish without any refined sugar.
Rosemary Herb
- Fresh rosemary: Finely chopped, for a simple, classic flavor. Fresh parsley or thyme work well too.
Full quantities are in the recipe card below.
How to Peel and Cube Butternut Squash (or Use Pre-Cut)
A sharp chef's knife and a sturdy vegetable peeler are all you need. Once you get the hang of it, a whole squash takes about 10 minutes to prep.
- Trim: Cut off the top and bottom so the squash stands flat.
- Peel: Peel from top to bottom until only bright orange flesh shows.
- Seed: Cut where the neck meets the round bottom, halve the bottom, and scoop out the seeds.
- Cube: Cut everything into 1-inch cubes, keeping the pieces the same size so they cook evenly.
Short on time? Pre-cut squash works great. Just trim any oversized pieces down to about 1 inch before air frying. Raw cubes keep in the fridge for 3 to 4 days so that you can prep them ahead for the week.
How to Make Crispy Air Fryer Butternut Squash Cubes (Step-by-Step)
Air fry 1-inch butternut squash cubes at 380°F for 18 to 20 minutes, shaking halfway, until the edges are caramelized and the centers are fork-tender. Here's exactly how I make them:
- Step 1: Season the squash. Toss the cubed butternut squash with olive oil, salt, and pepper until evenly coated. For the cinnamon maple version, add the maple syrup and cinnamon now too.
- Step 2: Preheat and fill the basket. Preheat your air fryer to 380°F for 2 minutes for the best browning. Lightly spray the basket with olive oil spray, then arrange the squash in a single layer, working in batches if needed.
- Step 3: Air fry. Cook for 18 to 20 minutes, shaking the basket at the 10-minute mark, until the cubes are fork-tender with caramelized edges.
- Step 4: Make the garlic sage topping (optional). While the squash cooks, sauté minced garlic and fresh sage in a little olive oil for 2 minutes, then add the pine nuts and toast until golden.
- Step 5: Toss and serve. Toss the hot squash with the garlic sage pine nut mixture, or finish it with fresh rosemary, and serve right away.
Recipe Video
How Long to Air Fry Butternut Squash Cubes?
I cook 1-inch cubes at 380°F for 18 to 20 minutes and shake the basket at the 10-minute mark. That's the sweet spot I landed on. If you cut your cubes smaller or use frozen squash, adjust the time like this:
| Squash | Air fry time at 380°F |
|---|---|
| Fresh, 1-inch cubes | 18 to 20 minutes |
| Fresh, ¾-inch cubes | 15 to 16 minutes |
| Pre-cut, trimmed to about 1 inch | 18 to 20 minutes |
| Frozen cubes, straight from the freezer | 20 to 22 minutes |
Can You Air Fry Frozen Butternut Squash?
Yes, and it's what I reach for on busy weeknights. There's no need to thaw it first. Break up any clumps, toss the frozen cubes with olive oil and seasoning, and air fry at 380°F for 20 to 22 minutes, shaking halfway. They won't get quite as caramelized as fresh squash, but they still come out tender with golden edges.
Skip thawing, because thawed squash releases water and turns mushy. Shake off any loose ice crystals and keep the cubes in a single layer so they roast instead of steam.
Flavor Ideas and Substitutions
The base recipe is just olive oil, salt, and pepper, so it's easy to take in whatever direction you're craving.
My Three Favorite Flavors
- Garlic Sage Pine Nut (Savory): My go-to. Garlic and fresh sage sautéed in olive oil with toasted pine nuts, tossed with the hot squash right before serving. It's cozy, nutty, and my favorite for Thanksgiving or next to roast chicken.
- Cinnamon Maple (Sweet): Pure maple syrup and cinnamon give the squash a warm, caramelized, lightly sweet flavor with no refined sugar. It's great on fall salads or as a snack.
- Rosemary Herb (Classic): Fresh rosemary and a pinch of sea salt. It's simple and goes with just about anything, from salmon to turkey burgers.
More Flavor Ideas
- Parmesan Garlic: Toss the cooked squash with grated parmesan, garlic powder, and black pepper. This one isn't dairy-free.
- Smoky Paprika: Before air frying, toss the cubes with smoked paprika, garlic powder, and a pinch of cayenne.
Easy Substitutions
- Dried herbs: No fresh herbs? Use ½ teaspoon of dried rosemary, thyme, or sage.
- Other oils: Avocado oil or melted coconut oil both work in place of olive oil.
- Other squash: This method also works for delicata or kabocha squash. Cut it into 1-inch pieces and air fry at 380°F for 18 to 20 minutes.
Tips for Caramelized Squash Cubes
- Pat the squash completely dry: Moisture is the number one reason squash turns soft instead of golden. Blot the cubes with a clean kitchen towel or paper towel before tossing them in oil, especially if you rinsed them or bought them pre-cut.
- Give the cubes space: When the basket is packed, the squash steams instead of roasting. Keep it to a single layer with a little room between pieces, and cook in two batches if needed. It adds a few minutes but makes a real difference in how caramelized the edges get.
- Add herbs and nuts at the end: Fresh herbs and pine nuts burn quickly in the air fryer's concentrated heat. I toss them with the hot squash after cooking so the herbs stay bright and the nuts stay toasty.
What to Serve with Air Fryer Butternut Squash
On its own, this squash is a light, fiber-rich side, so I almost always pair it with a good source of protein to make it a full meal. Here's how I serve it most:
- With a protein: My juicy thin sliced chicken breast, air fryer turkey meatballs, or everything bagel crusted salmon make it an easy weeknight dinner. For a special night, serve it with my air fryer filet mignon.
- In a bowl: Add it to rice, farro, or quinoa with a protein and greens, or use it in my quinoa sweet potato bowl in place of the sweet potato.
- On a salad: Toss warm cubes into a fall salad. It's especially good in my kale pomegranate salad.
- For the holidays: Serve it next to my balsamic maple Brussels sprouts and almond flour cornbread for Thanksgiving or Christmas.
Storing, Reheating, and Meal Prep
How to store: Store cooled squash in an airtight container for up to 4 days. Let it cool completely first, or trapped steam will make it soggy.
How to freeze: Freeze the cooled cubes on a baking sheet, then move them to a freezer bag for up to 3 months.
Reheating: Air fry at 350°F for 4 to 5 minutes, or 6 to 8 minutes from frozen. I skip the microwave, since it softens the edges.
How to meal prep: Cook a double batch at the start of the week and portion it with a protein and a grain. Store the garlic sage pine nut topping separately so the nuts stay crunchy.
Air Fryer Butternut Squash Cubes FAQs
Yes, I always peel it. The skin is technically edible, but it turns tough and papery in the air fryer, and peeled cubes caramelize more evenly. Delicata squash is the exception, since its thin skin gets tender when cooked.
Butternut squash is naturally high in water, so it gets caramelized edges and a tender center rather than chip-style crunch. If yours comes out soft, the usual cause is extra moisture or a crowded basket. Pat the cubes dry and cook them in a single layer.
Yes. Cook it up to 4 days ahead and store it in the fridge, then reheat in the air fryer at 350°F for 4 to 5 minutes to crisp the edges. You can also cut the raw squash up to 3 to 4 days ahead and air fry it when you're ready.
Yes. A ¾-cup serving of the classic version has about 107 calories and 4 grams of fiber, and butternut squash is naturally high in vitamin A and potassium. The air fryer also needs just 1 tablespoon of oil for the whole batch.
More Air Fryer Vegetable Recipes
Love easy veggie sides? These are the air fryer recipes I make on repeat, especially in fall and winter:
Did you make this recipe?
If you make this recipe, be sure to comment and rate it down below. Also, don't forget to tag me @healthfulblondie on Instagram and use the hashtag #healthfulblondie so I can see your delicious creation and share it with my followers!
📖 Recipe
Crispy Air Fryer Butternut Squash Cubes
Video
Ingredients
Base Ingredients
- 1 medium butternut squash, peeled, seeds scooped and cubed (OR 3 cups of store-bought butternut squash cubes)
- 1 tablespoon extra-virgin olive oil
- ½ teaspoon salt
- ½ teaspoon black pepper
Garlic Sage Pine Nut
- ½ tablespoon extra-virgin olive oil
- 2 large garlic cloves, minced
- 2 tablespoons fresh sage, finely chopped
- ¼ - ⅓ cup pine nuts
Cinnamon Maple
- 1 tablespoon pure maple syrup
- ¾ teaspoon ground cinnamon
- 1 tablespoon fresh rosemary, chopped, for garnish
Rosemary Herb
- 1 to 2 tablespoons fresh rosemary or parsley, chopped
Instructions
- Season the squash: Toss the cubed squash with olive oil, salt, and pepper until evenly coated. For the cinnamon maple version, add the maple syrup and cinnamon now too.
- Preheat and fill the basket: Preheat the air fryer to 380°F for 2 minutes. Lightly spray the basket with olive oil spray, then add the squash in a single layer, working in batches if needed.
- Air fry: Cook for 18 to 20 minutes, shaking the basket at the 10-minute mark, until fork-tender with caramelized edges.
- Make the garlic sage topping (optional): While the squash cooks, heat ½ tablespoon olive oil in a small pan over medium heat. Sauté the garlic and sage for 2 minutes, then add the pine nuts and toast for 2 to 3 minutes until lightly golden.
- Finish and serve: Toss the hot squash with the garlic sage pine nut mixture, or garnish with fresh rosemary for the classic or cinnamon maple version. Serve right away.
Notes
Nutrition
Recipe tested and developed by Tati Chermayeff, creator of Healthful Blondie. A former Division I rower, Ironman triathlete, and recipe developer based in Austin, TX, Tati creates high-protein and healthy recipes that actually taste like the real thing.
Tati Chermayeff says
One of my favorite Fall side dishes. Its cozy and yummy!
Christine says
BEST BEST BEST recipe! Tati you really out did yourself with this one. I love your air fryer recipes but the sage and pine nut topping of this squash is awesome. Love it!
Tati Chermayeff says
This is SO AWESOME to hear, Christine. Thank you for leaving a 5-star review!