Sierra Golds Hasselback Style Serves 6 6 Sierra gold potatoes, scrubbed 1/2 cup unsalted butter, melted and slightly cool 1/3 cup extra virgin olive oil Salt and pepper 1 cup finely shredded Parmigiano Reggiano Cheese (optional) see note 1. Preheat the oven to 400 degrees, and coat the inside of a baking dish with non-stick …