Step 1: Preheat your oven to 425°F (220°C). A hot oven is key to achieving that desired crispy texture.
Step 2: In a large mixing bowl, combine the halved Yukon Gold potatoes with 1 teaspoon of kosher salt and 1 teaspoon of baking soda. The baking soda helps to create a crispy exterior.
Step 3: Drizzle the melted butter and olive oil over the potatoes. Then, add the minced garlic, lemon zest, dried rosemary, the remaining kosher salt, and black pepper. Toss everything together until the potatoes are well coated.
Step 4: Sprinkle in 1/2 cup of freshly grated Parmesan cheese and toss again to ensure even distribution.
Step 5: Spread the potatoes in a single layer on a sheet pan and roast for about 25–30 minutes, or until golden brown and crispy, flipping them halfway through.
Step 6: Remove the potatoes from the oven and sprinkle with the remaining 2 tablespoons of Parmesan cheese. Return to the oven for an additional 5 minutes to melt the cheese.
Step 7: Garnish with chopped parsley and lemon wedges. Serve hot and enjoy!