Roasted Potatoes Oven Recipe: Perfectly Crispy On The Outside, Tender On The Inside

Are you looking for a side dish that is both easy to make and delicious? Look no further than roasted potatoes. Roasting potatoes in the oven is a great way to make them crispy on the outside while keeping them tender on the inside. In this article, we will explore the food science behind roasted potatoes, provide some culinary details, and share a tried-and-true recipe that is sure to impress.

The Science Behind Roasted Potatoes

Potatoes are a popular vegetable that is loved by many. They are grown all over the world, and there are many varieties to choose from. When it comes to roasting potatoes, the starch content plays a significant role in how they cook. Potatoes are made up of two types of starch: amylose and amylopectin. Amylose is a linear molecule that doesn’t gelatinize easily, while amylopectin is a branched molecule that forms a gel during cooking.

The more amylose a potato has, the more it will hold its shape when roasted. Potatoes with a lower amylose content are more likely to break apart and turn into mush. So, when choosing potatoes for roasting, look for varieties that are high in amylose, such as Russet potatoes, Yukon Gold potatoes, or fingerling potatoes.

Culinary Details

Roasting potatoes in the oven is easy, but there are some culinary details you should keep in mind to ensure a perfect result every time. Here are some tips to keep in mind:


When selecting potatoes for roasting, look for ones that are firm and free of blemishes. Avoid potatoes that are green or have sprouts, as they may contain solanine, a toxic substance. Choose potatoes that are uniform in size so that they cook evenly.


Wash and scrub the potatoes thoroughly with a vegetable brush to remove any dirt or debris. If there are any blemishes, cut them out with a paring knife. Leave the skin on as it adds flavor and texture to the dish.


Cut the potatoes into even-sized pieces so that they cook evenly. You can cut them into wedges, cubes, or slices, depending on your preference. Toss the potatoes with some oil and seasonings to add flavor. Olive oil, canola oil, or vegetable oil works well for roasting. You can use a variety of seasonings, such as salt, pepper, garlic powder, paprika, or rosemary.


Here are some tips to ensure your roasted potatoes come out perfectly:

  • Preheat the oven to 400°F before roasting the potatoes.

  • Use a baking sheet lined with parchment paper to prevent sticking.

  • Space the potatoes out evenly on the baking sheet to ensure they cook evenly.

  • Flip the potatoes halfway through cooking to ensure they roast evenly on all sides.

  • Don’t overcrowd the baking sheet as it can cause the potatoes to steam instead of roast.

  • Roast the potatoes in the oven until they are golden brown and crispy on the outside and tender on the inside.

Recipe for Roasted Potatoes Oven

roasted potatoes


  • 2 pounds of potatoes (Russet, Yukon Gold, or fingerling)

  • 3 tablespoons of olive oil

  • 1 teaspoon of salt

  • ½ teaspoon of black pepper

  • 1 teaspoon of garlic powder

  • 1 teaspoon of paprika

  • 2 sprigs of rosemary


  1. Preheat the oven to 400°F.

  2. Wash and scrub the potatoes thoroughly. Cut them into even-sized pieces.

  3. In a small bowl, mix together the olive oil, salt, black pepper, garlic powder, and paprika.

  4. Toss the potatoes in the oil mixture until they are coated evenly.

  5. Line a baking sheet with parchment paper. Space the potatoes out evenly on the baking sheet.

  6. Place the rosemary sprigs on top of the potatoes.

  7. Roast the potatoes in the oven for 30-40 minutes, flipping them halfway through cooking.

  8. Check the potatoes for doneness by inserting a fork into them. If the fork goes in easily, they are done. If not, continue roasting them until they are tender on the inside and crispy on the outside.

  9. Remove the rosemary sprigs before serving.


roasted potatoes

You can add other ingredients to your roasted potatoes to change things up. Here are some variations to try:

  • Bacon and Cheddar: Add crumbled bacon and shredded cheddar cheese to the potatoes before roasting.

  • Parmesan and Garlic: Mix grated Parmesan cheese, minced garlic, and chopped parsley with olive oil and toss with the potatoes before roasting.

  • Lemon and Thyme: Mix lemon juice, thyme leaves, and minced garlic with olive oil and toss with the potatoes before roasting.

Overcook and Undercook

oven baked roasted potatoes

Roasting potatoes in the oven is relatively forgiving, but it is possible to overcook or undercook them. Overcooking will cause the potatoes to turn mushy and undercooking will leave them hard on the inside. To avoid overcooking or undercooking, keep an eye on the potatoes while roasting and check them for doneness with a fork.


Roasted potatoes are a delicious and easy side dish that pairs well with a variety of main dishes. By following the culinary details and tips we’ve outlined, you’ll be able to make perfectly crispy potatoes with a tender interior every time. Give our recipe a try and let us know how it turns out!

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  • FAQS On Roasted Potatoes Oven Recipe

    What Is The Best Type Of Potato To Use For Roasted Potatoes In The Oven?

    When making roasted potatoes in the oven, it is recommended to use starchy potatoes such as russets, Yukon gold, or Idaho potatoes. These types of potatoes have a higher starch content, which makes them perfect for achieving a crispy exterior and a fluffy interior when roasted.

    Should I Peel The Potatoes Before Roasting Them In The Oven?

    Whether or not to peel the potatoes is a matter of personal preference. If you prefer the nutty flavor and rustic appearance of roasted potatoes with their skins on, you can skip peeling them. However, if you prefer a smoother texture and a more uniform look, peeling the potatoes before roasting is advisable.

    How Should I Cut The Potatoes For Roasted Potatoes In The Oven?

    To ensure even cooking and a delightful textural contrast, it is recommended to cut the potatoes into chunks or wedges of similar size. This allows for consistent cooking time and ensures that all the potatoes will be perfectly roasted. Aim for uniform pieces, around 1 to 1½ inches in size.

    What Seasonings Can I Use To Enhance The Flavor Of Roasted Potatoes In The Oven?

    Roasted potatoes can be flavored in various ways to suit your taste preferences. The classic combination involves tossing the potatoes with olive oil, salt, pepper, and minced garlic. Alternatively, you can add herbs like rosemary, thyme, or oregano for a fragrant touch. Experimenting with spices like paprika, cayenne, or onion powder can also create unique flavor profiles.

    How Long Should I Roast The Potatoes In The Oven And At What Temperature?

    The roasting time and temperature may vary depending on the size and type of potato, as well as desired crispiness. As a general guide, it is recommended to preheat the oven to 425°F (220°C) and roast the potatoes for about 30-40 minutes, or until golden brown and tender. Remember to flip or toss them once or twice during cooking to ensure even browning on all sides. However, always monitor the potatoes closely and adjust the cooking time accordingly to achieve your desired results.