
Crunchy sweet potato wedges paired with garlic avocado aioli mix amazing textures and tastes for a mouthwatering snack or side. Getting that hard-to-achieve crunch with sweet potatoes isn't tough anymore—just follow a few key steps that'll turn these healthy spuds into something you won't be able to stop eating.
I stumbled on the water-soaking trick when I got sidetracked making dinner one night. My potatoes sat in water while I dealt with something else, and I was amazed at how much crunchier they turned out! Now I never skip this step—these wedges vanish from plates in seconds flat.
Ideal Potato Selection
- Go for sweet potatoes with flat, straight sides for easier cutting—try to find evenly shaped ones without many twists or knobs
- Stick with medium-sized ones for wedges that bake evenly without getting burnt
- The orange-flesh kinds (sometimes called "yams" in US stores) give you that lovely sweet caramelization
- Your call on skin—taking it off makes texture more even while keeping it on adds rustic look and extra nutrients

Foolproof Crisping Technique
Smart CuttingFirst, cut your sweet potatoes down the middle lengthwise, then split each half again. Keep cutting until you've got wedges about ¾-inch thick. Making them all the same size means they'll cook together—you don't want some burnt while others stay raw inside.
Water Bath MagicPut your cut wedges in cold water for at least an hour. This might seem fussy but it's worth it—the water pulls out extra starch that normally keeps sweet potatoes from crisping up. You'll notice the water turns cloudy as this happens.
Complete DryingAfter their bath, drain the wedges and wipe them totally dry with paper towels. Any wetness left will ruin your crunch factor, so don't rush this part. Once they're dry, toss them in a bit of cornstarch, which makes a super-thin layer that soaks up any leftover moisture during cooking.
Seasoning MixMix your wedges with olive oil and a combo of paprika, garlic powder, onion powder, chili powder, cayenne (more or less depending on how spicy you want them), and dried thyme. Don't use fresh herbs—they've got moisture that works against getting crispy results.
Hot Pan TrickHere's a game-changer: stick your baking sheets in the oven while it heats up. When you put your seasoned wedges on these hot pans, they start sizzling right away, giving you that important first sear. Keep them spread out—crowding leads to steaming instead of crisping.
Salt TimingWait until the wedges come out golden and crunchy from the oven before adding salt. Salting before cooking pulls out moisture and ruins crispiness. A dash of flaky sea salt when they're fresh from the oven gives you that perfect sweet-salty combo.
Dip CreationWhile the wedges cook, throw ripe avocado, garlic, a little mayo, lemon juice, and fresh herbs in a small food processor or blender. A quick whirl and you've made the perfect creamy partner for your crunchy wedges—the cool, garlicky dip balances the sweet spiciness just right.
One time my neighbor dropped in while these were baking and hung around for 20 minutes just to try them. She pretended she was "just dropping off mail" but kept finding excuses to stay as the smell filled my kitchen. When I finally let her sample one, she took a bite and right away asked how I made them. Now she brings them to every gathering and takes all the credit—but I know exactly where she learned that soaking trick!
Ways To Enjoy
Dish these wedges up right from the oven when they're crunchiest, with the avocado aioli in a bowl for dipping. They go great with grilled chicken or burgers, or add them to your game day snack lineup. For a full vegetarian meal, eat them with a big salad or veggie burger.
Tasty Twists
Try making them sweet and spicy by adding a spoon of brown sugar or maple syrup to your spices. Or go for something totally different with curry powder, cumin, and a hint of cinnamon for Moroccan-style wedges. If avocados aren't your thing, these taste great with regular garlic aioli, spicy mayo, or even a tangy yogurt dip.
Keeping Leftovers
These wedges taste way better fresh, but if you have extras, put them in a paper bag instead of a sealed container—this helps keep some crunch by stopping moisture buildup. Warm them in a hot oven (never use a microwave) for about 5 minutes to bring back some crispiness. The avocado dip stays good for up to two days in the fridge if you press plastic wrap right onto its surface to stop it from turning brown.

Pro Kitchen Tricks
- Cut across the sweet potato grain for wedges that don't fall apart
- In a rush? Even soaking for 30 minutes will make them noticeably crispier
- A quick oil spray just before serving adds extra richness and shine
The first time I made these for my fussy nephew, he eyed them doubtfully and said he "couldn't stand sweet potatoes." After watching everyone else dig in, he tried one reluctantly—then ate seven more! Now when his family visits, he asks if we're having "the orange fries" before he even takes his jacket off. Sometimes all it takes to win over veggie haters is making them super crunchy!
Frequently Asked Questions
- → What’s the point of soaking the potatoes?
- Soaking pulls out some of the starch on the potatoes' surface, helping them crisp better while they bake. It’s a small step to get that perfect crunch.
- → Can I skip the cornstarch?
- Cornstarch makes the potatoes extra crispy, but if you don’t have any, that’s okay. The wedges might not be as crunchy, but they'll still be tasty with the seasonings.
- → What keeps the avocado sauce fresh and green?
- Lemon juice keeps it from browning too fast. For storage, press plastic wrap right against the dip’s surface and keep it in the fridge. Use it within a day, though!
- → Does this work for meal prep?
- The wedges are best when they’re hot and fresh from the oven. You can prep the potatoes and make the sauce ahead, then bake the dippers when you need them.
- → Why add the salt after baking?
- Salting before baking pulls out too much moisture and ruins the crispy texture. Add salt once they’re done for the ideal salty crunch.
- → Can I cook these in an air fryer?
- Absolutely! Cook at 380°F for around 15 minutes, shaking a bit halfway through. Avoid crowded baskets to get the best results.