Diced the sweet potatoes into cubes that are about ½ inch in size.
In a bowl, toss the diced sweet potatoes, avocado oil, and spices together until the sweet potatoes are evenly coated.
1 Teaspoon Salt, ½ Teaspoon Pepper, ½ Teaspoon Onion Powder, ¼ Teaspoon Garlic Powder, ¼ Teaspoon Smoked Paprika, 2-3 Tablespoon Avocado Oil, 2 Medium Sweet Potatoes
Spread the coated sweet potatoes in an even layer on a baking sheet. Be sure to give the sweet potatoes space, so the pieces are not touching.
Bake the sweet potatoes in the preheated oven for about 15 minutes.
Flip the sweet potatoes after 15 minutes and continue to bake and flip as needed until the pieces of sweet potatoes are crisp on all sides. This should take about 30-45 minutes.
Notes
Tips and tricks.
Use orange or red skinned sweet potatoes. - These sweet potatoes are sweeter and less starchy. These are sometimes mislabeled at the store as yams.
Cut the sweet potatoes into equal-sized pieces. - Cutting the sweet potato into equal-sized pieces will help ensure that they cook at the same rate.
Peel or don't peel. - This is a personal preference. If you like sweet potatoes with skin on, you don't need to peel them before cooking. If you don't like the skins, go ahead and peel them.
Spread out the sweet potatoes. - The biggest reason that sweet potatoes are not getting crispy is that they are overcrowded while being cooked. Giving your sweet potatoes room will keep the sweet potatoes from steaming, which will allow them to get crispy.
Extra crispy sweet potatoes. - If you want to ensure extra crispy sweet potatoes, you can soak your cut sweet potatoes in some cold water for about 30-60 minutes. This will remove excess starch from the sweet potatoes, which will allow them to get even crispier. If you really want to make these extra crispy, you can also add 1-2 tablespoons of cornstarch with the oil and seasonings to coat the sweet potatoes.