If you are looking for a dish that combines simplicity with mouthwatering flavor, this 3 Ingredient Roasted Potatoes with Crunchy Onions Recipe is an absolute winner. With just three humble ingredients, you can create golden, crispy on the outside and tender on the inside potatoes bursting with savory goodness from the crunchy onion seasoning. It’s the kind of easy, quick, and satisfying recipe that transforms everyday potatoes into a standout side everyone will rave about.

Ingredients You’ll Need
Sometimes the simplest ingredients come together to create the biggest flavor impact. In this recipe, each element plays a crucial role to build texture, taste, and that irresistible aroma that fills your kitchen.
- 2 pounds baby red potatoes: These small, tender potatoes roast evenly and develop a beautiful golden crust while staying creamy inside.
- 1/3 cup olive oil: The oil ensures a crispy exterior and helps the delicious onion seasoning stick to every bite.
- 1 (1 ounce) package onion soup mix (dry): This secret star adds a robust savory punch with crunchy onion bits that elevate the potatoes from simple to spectacular.
How to Make 3 Ingredient Roasted Potatoes with Crunchy Onions Recipe
Step 1: Preheat the Oven
Start by preheating your oven to 400 degrees Fahrenheit. This high heat is the key to achieving perfectly roasted potatoes with a crispy exterior while sealing in the soft, creamy texture inside.
Step 2: Prepare the Potatoes
Slice the baby red potatoes in half or quarters depending on their size. Keeping them roughly the same size is important to ensure even cooking, so every piece turns out perfectly tender and golden.
Step 3: Combine Ingredients
Place your cut potatoes into a medium bowl. Pour in the olive oil, then sprinkle the entire dry onion soup mix over the potatoes. Give everything a good stir, making sure each piece is thoroughly coated with that flavorful mixture.
Step 4: Prepare Baking Sheet
Line a large baking sheet with aluminum foil to make cleanup easier, then spray it lightly with nonstick spray. This prevents sticking and helps the potatoes roast to golden perfection without losing their delicious crunchy onions.
Step 5: Roast the Potatoes
Spread the potatoes out in a single layer on your prepared sheet. Roast them in the oven for 20 to 25 minutes, turning once halfway through to promote even browning. You’ll know they’re ready when they are fork tender, crispy on the edges, and smelling absolutely irresistible.
Step 6: Serve Hot and Enjoy
Once the potatoes come out of the oven, serve them immediately while their crunchy onions are at their peak. They’re a fantastic companion to any meal, and you’ll be amazed by how three simple ingredients can lead to this much flavor.
How to Serve 3 Ingredient Roasted Potatoes with Crunchy Onions Recipe

Garnishes
Add a sprinkle of fresh chopped parsley or chives right after roasting for a pop of color and fresh herb aroma. A little sea salt or cracked black pepper on top can also enhance the flavors without overpowering the delicious crunchy onions.
Side Dishes
This potato dish pairs beautifully with grilled chicken, seared steak, or even a simple green salad. The savory, crispy potatoes offer a hearty contrast to lighter mains and bring comforting warmth to the plate.
Creative Ways to Present
Try serving these roasted potatoes in rustic individual ramekins or stack them on a platter with roasted vegetables for a shareable side. They’re just as good on their own as they are incorporated into warm bowls with dips like sour cream or garlic aioli for added indulgence.
Make Ahead and Storage
Storing Leftovers
Leftover roasted potatoes should be stored in an airtight container in the refrigerator. They will stay fresh for up to 3 days, making them a great option for quick meals or snacks during the week.
Freezing
While freezing roasted potatoes isn’t ideal due to texture changes, you can freeze them if needed. Place cooled potatoes in a freezer-safe bag or container and store for up to 2 months. Defrost overnight in the fridge before reheating.
Reheating
The best way to reheat your 3 Ingredient Roasted Potatoes with Crunchy Onions Recipe is in the oven at 375 degrees Fahrenheit for 10 to 15 minutes. This helps restore their crispiness better than microwaving, which tends to make them soggy.
FAQs
Can I use other types of potatoes?
Absolutely! While baby red potatoes work best for their size and texture, Yukon gold or fingerling potatoes also roast nicely. Just adjust cutting size to keep pieces uniform for even cooking.
Is the onion soup mix really necessary?
The onion soup mix is key to achieving those crunchy onion bits and savory layers of flavor that define this recipe. If you want a homemade alternative, try a blend of dried onion flakes, garlic powder, and beef bouillon powder.
Can I make this recipe vegan?
Yes, by choosing a vegan-friendly onion soup mix or making your own, you can easily keep this dish plant-based. Olive oil and potatoes are naturally vegan, making this a delicious option for everyone.
How crispy do the potatoes get?
These potatoes develop a beautifully crisp outer layer thanks to the olive oil and high oven heat, while staying soft and creamy inside. The onion soup mix adds an extra crunch via dehydrated onions that toast during roasting.
Can I add herbs or spices?
Definitely! Feel free to experiment by adding rosemary, thyme, paprika, or pepper to the mix for an extra flavor boost. Just make sure not to overwhelm the simplicity that makes this recipe so great.
Final Thoughts
This 3 Ingredient Roasted Potatoes with Crunchy Onions Recipe is proof that incredible flavor doesn’t have to be complicated. It’s a perfect go-to for busy weeknights or anytime you want a comforting side dish that feels special without the fuss. Give it a try, and I promise it will become one of your new favorite ways to enjoy potatoes.
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3 Ingredient Roasted Potatoes with Crunchy Onions Recipe
- Prep Time: 5 minutes
- Cook Time: 20-25 minutes
- Total Time: 25-30 minutes
- Yield: 5-6 servings
- Category: Side Dish
- Method: Roasting
- Cuisine: American
Description
This simple and delicious recipe for 3 Ingredient Roasted Potatoes with Crunchy Onions combines tender baby red potatoes with a savory onion soup mix and olive oil for a flavorful, easy side dish that’s perfect for any meal.
Ingredients
Ingredients
- 2 pounds baby red potatoes
- 1/3 cup olive oil
- 1 (1 ounce) package onion soup mix (dry)
Instructions
- Preheat Oven: Preheat your oven to 400 degrees F to prepare for roasting the potatoes.
- Prepare Potatoes: Slice the baby red potatoes in half or quarter them so all pieces are about the same size for even cooking.
- Combine Ingredients: Place the sliced potatoes in a medium bowl, then add the olive oil and dry onion soup mix. Stir well to coat all the potato pieces evenly.
- Prepare Baking Sheet: Line a large baking sheet with aluminum foil and spray it with nonstick spray to prevent sticking and ease cleanup.
- Roast Potatoes: Spread the coated potatoes on the prepared baking sheet in a single layer. Roast in the preheated oven for 20-25 minutes, turning the potatoes halfway through to ensure even browning. Remove when they are tender and easily pierced with a fork.
- Serve: Serve the roasted potatoes hot for a delicious and crunchy side dish enhanced by the onion soup seasoning.
Notes
- For extra crispiness, use baby red potatoes as they roast well and hold shape.
- Turning the potatoes halfway through cooking ensures even roasting.
- To add more flavor, sprinkle fresh herbs like parsley or rosemary after roasting.
- Use aluminum foil-lined pan for easy cleanup.

