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Dinner · Part 2 of 3: Instructions

Crispy Parmesan Ranch Roasted Potatoes Step-by-step instructions

A ceramic baking dish filled with golden-brown roasted potato cubes topped with melted parmesan cheese.
Prep
Cook
Total
Serves
4
Includes 5 min resting

Before you start

Before beginning, ensure that your oven is fully preheated to 400°F (200°C). Prepare your ingredients by washing and scrubbing the red potatoes, then cutting them into consistent, bite-size cubes.

Having all your ingredients pre-measured and ready will streamline the process, allowing you to get the dish into the oven quickly. Make sure your butter is completely melted but not boiling, and that your parmesan is freshly grated for the best melting quality and crispiness.

Ingredients at a glance (4)
  • 2 lbs red-skinned potatoes, cut into bite-size cubes
  • 4 tbsp unsalted butter, melted
  • 2 tbsp ranch seasoning mix
  • 1/2 cup parmesan cheese, grated

Instructions

Preparation and Sizing

  1. Prepare the Potatoes
    Preheat the oven to 400°F (200°C). Wash and dry the red-skinned potatoes thoroughly. Using a sharp chef's knife, cut the potatoes into uniform, bite-size cubes to ensure even cooking. Place the prepared potato cubes into a large ceramic baking dish, spreading them out into a single layer for the best results during the roasting process.
    Look for The potatoes should be cut into uniform, bite-size cubes.
    Tip Keep the potato pieces roughly the same size to ensure they finish roasting at the same time.

The potatoes are cut into uniform cubes and are ready to be seasoned. Ensure all pieces are similar in size so they cook evenly throughout the roasting process. The baking dish should be clean and dry, ready to receive the potatoes in a single, even layer to promote consistent heat circulation and optimal browning.

Seasoning and Coating

  1. Season and Coat
    In a small mixing bowl, whisk together the melted unsalted butter and the ranch seasoning mix until well combined. Pour this ranch-butter mixture evenly over the potato cubes in the baking dish. Use a spoon or clean hands to toss the potatoes gently, ensuring every piece is thoroughly coated in the seasoned butter for maximum flavor infusion.
    Look for The butter mixture is fully incorporated into the ranch seasoning.
    Tip Pour the mixture slowly to avoid pooling at the bottom of the dish.

The potatoes are thoroughly coated in the ranch-butter mixture. Every cube should have a visible layer of seasoning, and there should be no large pools of butter at the bottom of the dish.

The mixture should smell fragrant and savory, and the potatoes should be arranged in a single layer to prepare for the final roasting phase.

Roasting and Crisping

  1. Top and Bake
    Sprinkle the grated parmesan cheese evenly over the top of the butter-coated potatoes. Place the baking dish in the preheated oven and bake for 35 to 40 minutes. The potatoes are done when they are fork-tender and the parmesan has formed a golden, crispy crust on the surface. Allow the dish to rest for 5 minutes before serving to let the flavors settle and the coating firm up.
    Look for The potatoes are fork-tender and the parmesan topping is golden brown.
    Tip If the cheese browns too quickly, cover the dish loosely with foil for the remainder of the cooking time.

The potatoes are golden-brown, fork-tender, and topped with a crispy, melted parmesan crust. The butter should be bubbling at the edges of the dish, and the aroma should be savory and toasted. Allow the dish to rest for a few minutes before serving to let the crust set and the flavors meld together perfectly.

Common mistakes

A common mistake is cutting the potatoes into uneven sizes, which leads to some pieces being overcooked and mushy while others remain raw in the center. Another error is crowding the baking dish, which traps steam and prevents the potatoes from achieving a crispy, golden-brown crust.

Finally, be sure not to use pre-grated parmesan from a shaker can, as it contains anti-caking agents that prevent it from melting and crisping properly; always use freshly grated cheese for the best results.

How to tell it’s done

The potatoes are perfectly cooked when they are fork-tender, meaning a fork slides easily into the center of the largest cube without resistance.

Visually, the potatoes should have a vibrant, deep golden-brown color on the edges, and the parmesan cheese should be toasted, crisp, and slightly bubbly. If the potatoes are still firm or pale, extend the baking time by 5-minute increments until the desired level of crispness is achieved.

Coming up in Part 3: common questions

  • Can these potatoes be made in advance?
  • Why is it important to cut the potatoes into uniform sizes?
  • What is the best way to keep the potatoes from getting soggy?

Also in Part 3: variations (Garlic Herb Potatoes, Spicy Cajun Potatoes), storage and make-ahead, and the printable recipe card.

Up next · Part 3 of 3

2 variations · storage & make-ahead · 3 answers · printable card

Tips, FAQ & printable recipe (Part 3)← Back to the ingredients (Part 1)