Preheat oven to 450F/225C. Line a large baking sheet with foil and place a rack (like you'd use to cool cookies) on top. Spray the rack with non-stick spray.
Mix all the sour cream seasoning ingredients in a small bowl and mix well.
Place the potato wedges in a large bowl. Add the oil and minced garlic. Toss to coat the potatoes. Using your hands works best here.
Add about 3/4 of the seasoning mixture to the potatoes; toss to coat. Place the potato wedges on the rack. Bake for 20 minutes then turn them. Bake for an additional 15-20 minutes.
Place potatoes on a serving plater and sprinkle with the remaining seasoning and grated cheese. Additional chopped chives may be added if you wish.
For air fryer--cook on highest temperature machine will go. Turn and/or shake a few times. Check potatoes after about 30 minutes.