Step 1: Preheat the Oven. Start by preheating your oven to 425°F (220°C). A hot oven is key to achieving that perfect crispiness.
Step 2: Prepare the Potatoes. Wash your large Russet potato thoroughly. There’s no need to peel it, as the skin adds an extra layer of flavor and texture. Cut the potato into 1/2 inch cubes, ensuring they are as uniform as possible for even cooking.
Step 3: Toss with Oil and Seasoning. In a large mixing bowl, combine the cubed potatoes with vegetable oil and garlic salt. Toss until the potatoes are well-coated. This step is essential for flavor and crispiness!
Step 4: Add the Parmesan. Sprinkle a generous amount of grated Parmesan cheese over the potatoes. Toss again to ensure the cheese evenly coats each cube.
Step 5: Spread on Baking Sheet. Spread the seasoned potatoes in a single layer on a baking sheet. Make sure there’s enough space between each cube to allow them to crisp up nicely.
Step 6: Bake to Perfection. Bake in the preheated oven for about 25-30 minutes, flipping halfway through. Keep an eye on them towards the end; you want them golden brown and crispy.
Step 7: Garnish and Serve. Once they’re done baking, remove the potatoes from the oven and sprinkle with chopped fresh parsley for a pop of color and freshness. Serve them hot, and watch them disappear!