Heat the oven to 450 degrees F.
Put the potato wedges in a sheet pan.
Add the chicken broth or water, olive oil, lemon juice and zest, garlic, oregano and salt to a measuring cup. Mix.
Pour the mixture over the potatoes and toss to coat. Spread the potatoes into an even layer and roast them for 50 minutes to 1 hour, turning them halfway until golden brown and crisp on the edges and tender inside.
Remove them from the oven and finish with the flaky sea salt and pepper, and garnish with the lemon slices and chopped parsley.
