Preheat oven to 325 degrees F.
Cut potatoes lengthwise into thick wedges; place in 13 x 9-inch baking dish.
In a small bowl, whisk together water, lemon juice, olive oil, garlic, salt, oregano, and pepper; pour over potatoes, turning to coat evenly.
Bake approximately 1 hour, gently turning occasionally to keep potatoes well moistened, or
until potatoes are very tender and moist, and most of the liquid has evaporated. Remove from oven and serve.
Makes 8 servings.