Prepare the homemade wedges according to the recipe and spread them across a large parchment-lined baking tray (or two) in a single layer, with some space between. Then bake the potato wedges in a preheated oven at 425F/220C for 20-35 minutes, flipping them halfway. The exact time they take will depend on how thickly you've sliced the homemade potato wedges. I recommend checking on them at 20 minutes and every few minutes afterward.