Preheat the oven to 425°F. Line a baking sheet with parchment paper (optional for easier cleanup).
Wash and scrub the 4 medium russet potatoes. Cut each potato in half lengthwise, then cut each half into 3–4 wedges of similar size.
Pat the potato wedges dry with paper towels to remove excess moisture.
Place the dried wedges in a large bowl. Add 2 1/2 tablespoons olive oil, 1 1/2 teaspoons garlic powder, 1 teaspoon paprika, 3/4 teaspoon onion powder, 1 teaspoon salt (or to taste), and 1/4 teaspoon black pepper. Toss until all wedges are evenly coated.
Arrange the wedges in a single layer on the prepared baking sheet with the cut sides down, leaving space between wedges so air can circulate.
Bake for 20 minutes at 425°F.
Flip each wedge and continue baking for an additional 15–25 minutes, until the wedges are golden, crispy, and tender when pierced with a fork.
Remove from the oven, transfer to a serving plate, garnish with chopped fresh parsley, and serve warm with your preferred dipping sauce, if desired.