Mashed potatoes are already one of the most beloved comfort foods, but turning them into crispy potato cakes takes them to another level. Onion and Cheddar Mashed Potato Cakes are the perfect way to transform simple mashed potatoes into a flavorful dish with a golden crust and a soft, creamy center. The sharpness of cheddar cheese pairs beautifully with the sweetness of sautéed onions, creating a savory balance that makes these cakes irresistible. I first tried making potato cakes with leftover mashed potatoes after a holiday dinner, and they quickly became a favorite in my kitchen. They are easy to prepare, incredibly satisfying, and versatile enough to serve as a side dish, snack, or even a light meal. Whether you enjoy them alongside eggs for breakfast or with roasted meats for dinner, these potato cakes bring comforting flavors and satisfying textures to the table.
Why You’ll Love This Recipe
These potato cakes are a fantastic way to use leftover mashed potatoes while creating something entirely new. The crispy exterior contrasts perfectly with the creamy interior, and the combination of onion and cheddar adds depth and richness. They are simple to make, budget-friendly, and perfect for breakfast, lunch, or dinner.
Onion and Cheddar Mashed Potato Cakes: Crispy, Cheesy Comfort in Every Bite
- Total Time: 30 minutes
- Yield: 8 potato cakes
- Diet: Vegetarian
Description
Crispy onion and cheddar mashed potato cakes made from creamy mashed potatoes mixed with sharp cheddar and sautéed onions, then pan-fried until golden and crunchy on the outside.
Ingredients
- 3 cups mashed potatoes (cold works best)
- 1 cup shredded sharp cheddar cheese
- 1 small onion, finely diced
- 2 tbsp butter
- 1/4 cup all-purpose flour
- 1 large egg
- 1/2 tsp salt
- 1/2 tsp black pepper
- 1/4 tsp garlic powder
- 1/4 cup chopped green onions or chives
- 1/2 cup breadcrumbs (optional for coating)
- 2–3 tbsp vegetable oil or olive oil for frying
Instructions
- Heat butter in a skillet over medium heat. Add the diced onion and cook for 4–5 minutes until soft and lightly golden. Remove from heat and allow to cool slightly.
- In a large bowl, combine mashed potatoes, cheddar cheese, cooked onions, flour, egg, salt, pepper, garlic powder, and green onions. Mix until well combined.
- If the mixture is too soft, add a little more flour until it can hold its shape.
- Form the mixture into small patties about 2–3 inches wide.
- Optional: Lightly coat each potato cake in breadcrumbs for extra crispiness.
- Heat oil in a large skillet over medium heat.
- Place the potato cakes in the skillet and cook for 3–4 minutes per side until golden brown and crispy.
- Transfer to a paper towel-lined plate to drain excess oil.
- Serve warm, optionally topped with sour cream or extra chopped green onions.
Notes
- Cold leftover mashed potatoes work best for shaping the cakes.
- Add cooked bacon bits for extra flavor if desired.
- If the mixture feels sticky, chill it for 20 minutes before forming patties.
- These cakes can be baked at 400°F (200°C) for about 20 minutes instead of frying.
- Store leftovers in the refrigerator for up to 3 days and reheat in a skillet for best texture.
- Prep Time: 15 minutes
- Cook Time: 15 minutes
- Category: Side Dish
- Method: Pan-Frying
- Cuisine: American
Ingredients
(Tip: You can find the complete list of ingredients and their measurements in the recipe card below.)
Mashed potatoes form the base of this recipe and provide the creamy texture that makes these cakes so satisfying. Leftover mashed potatoes work especially well because they tend to be slightly firmer, which helps the cakes hold their shape during cooking. Smooth, well-seasoned potatoes produce the best results.
Cheddar cheese adds bold flavor and a slightly sharp taste that balances the mildness of the potatoes. As the cakes cook, the cheese melts into the mixture and helps create a rich, savory interior. Sharp cheddar works particularly well, but mild cheddar can also be used if you prefer a softer flavor.
Onions bring sweetness and depth to the dish. When sautéed until soft and lightly golden, they develop a subtle caramelized flavor that pairs beautifully with the cheese and potatoes. Yellow or white onions are both excellent options.
Egg acts as a binding ingredient that helps the potato mixture hold together when forming the cakes. It ensures the cakes stay intact while cooking and gives them a slightly tender structure.
All-purpose flour helps stabilize the mixture and prevents the cakes from falling apart during frying. It also contributes to a slightly crisp outer texture once the cakes are cooked.
Green onions add freshness and a light onion flavor that brightens the dish. They also provide a touch of color and complement the cooked onions nicely.
Salt and black pepper enhance the overall flavor of the potato cakes. Since mashed potatoes are often already seasoned, adjust the amount carefully to maintain balance.
Butter or oil is used for frying and helps create the golden, crispy exterior that makes these potato cakes so delicious. Butter adds extra richness, while oil provides a slightly lighter finish.
Directions
Begin by heating a small skillet over medium heat and adding a little butter or oil. Add the finely chopped onions and cook them slowly until they become soft and lightly golden. This usually takes about five to seven minutes. Once cooked, remove the onions from the heat and allow them to cool slightly.
In a large mixing bowl, combine the mashed potatoes, sautéed onions, shredded cheddar cheese, chopped green onions, egg, and flour. Season the mixture with salt and black pepper. Stir everything together until the ingredients are evenly distributed and the mixture becomes thick enough to shape.
Using your hands or a spoon, form the mixture into small patties about half an inch thick. If the mixture feels too soft, you can chill it in the refrigerator for about fifteen minutes to make shaping easier.
Heat a large skillet over medium heat and add butter or oil. Place the potato cakes into the skillet, leaving a little space between each one. Cook them for about three to four minutes on each side until they become golden brown and crispy.
Once cooked, transfer the potato cakes to a plate lined with paper towels to remove excess oil. Allow them to cool slightly before serving so they hold their shape and develop the perfect texture.
Serve the cakes warm, optionally topped with sour cream, yogurt sauce, or fresh herbs for additional flavor.
Equipment needed :
Must-Have Tools to Get Rolling
Here’s what you’ll want to have on hand:
Silicone Spatula – Durable, heat-resistant silicone spatula perfect for mixing, scraping, and spreading. Gentle on non-stick cookware and easy to clean.
Large pot – You’ll need this to boil the whole cabbage head and soften the leaves.
large bowl –Spacious, durable large bowl ideal for mixing, serving, or food preparation. Made from sturdy material and easy to clean.
Sharp knife – For coring the cabbage and slicing out the thick stem in each leaf. A paring knife works best.
Mixing bowl – A big bowl makes it easier to combine your meat and rice filling evenly.
Cutting board – For prepping cabbage leaves and rolling them like a pro.
Full-Size Blender – is a powerful kitchen appliance for making smoothies, soups, and sauces in large batches.
3-in-1 Air Fryer – This versatile 3-in-1 air fryer offers Air Fry for healthier meals with less oil, Bake for bakery-quality desserts and treats, and Reheat to bring leftovers back to life with crispy, flavorful results.
Servings and timing
This recipe makes about 8 potato cakes, serving approximately 4 people depending on portion size. Preparation takes about 15 minutes, cooking takes around 10 minutes, and the total time for the recipe is about 25 minutes.
Storage/reheating
Store leftover potato cakes in an airtight container in the refrigerator for up to three days. To reheat them, place the cakes in a skillet over medium heat with a small amount of oil or butter and cook until warmed through and crispy again. They can also be reheated in an oven at 350°F (175°C) for about 10 minutes. While microwave reheating is possible, it may soften the crisp exterior. Potato cakes can also be frozen for up to two months; thaw in the refrigerator before reheating.
Variations and Customizations
One of the best things about onion and cheddar mashed potato cakes is how easily they can be adapted with different flavors and ingredients. Once you have the basic potato mixture prepared, you can experiment with additions that suit your taste or complement the meal you are serving.
A simple variation is changing the type of cheese. While cheddar provides a sharp and classic flavor, other cheeses can offer interesting results. Mozzarella creates a softer, stretchier interior, while Parmesan adds a nutty and slightly salty flavor. Monterey Jack is another good option if you want a milder but creamy cheese.
Adding herbs can also elevate the flavor of the potato cakes. Fresh parsley, chives, dill, or thyme work particularly well with potatoes and onions. These herbs bring brightness to the dish and create a more aromatic finish.
For a heartier version, you can mix in cooked bacon bits, diced ham, or shredded chicken. These additions add extra protein and make the potato cakes substantial enough to serve as a main dish rather than a side.
Vegetables can also be incorporated for additional texture and nutrition. Finely chopped bell peppers, sautéed mushrooms, or grated carrots blend well into the mixture without overpowering the potatoes.
If you prefer a crispier exterior, coat the formed cakes lightly in breadcrumbs before frying. This creates a crunchy crust that contrasts nicely with the soft interior.
For a lighter cooking method, the potato cakes can be baked in the oven instead of fried. Arrange them on a lightly greased baking sheet and bake at 400°F (200°C) for about 20 minutes, flipping them halfway through to ensure even browning.
With these simple adjustments, the recipe can easily be customized to suit different preferences and occasions while still maintaining the comforting flavor of the classic potato cake.
Nutrition and Dietary Info
The following nutrition values are approximate per serving.
| Nutrient | Per Serving |
|---|---|
| Calories | 210 |
| Protein (g) | 7 |
| Carbs (g) | 24 |
| Fat (g) | 10 |
| Saturated Fat (g) | 4 |
| Fiber (g) | 2 |
| Sugar (g) | 2 |
| Sodium (mg) | 310 |
This recipe is vegetarian and can be adapted to different dietary needs. For a gluten-free version, replace the all-purpose flour with a gluten-free flour blend or cornstarch. Reduced-fat cheese can also be used to lower the fat content while maintaining flavor.
Expert Tips & Customizations
Use chilled mashed potatoes
Cold mashed potatoes are easier to shape and help the cakes hold together during cooking.
Cook onions slowly
Allow the onions to soften and caramelize slightly for the best flavor.
Do not overcrowd the pan
Leaving space between the cakes ensures they cook evenly and develop a crisp crust.
Adjust the thickness
Thicker cakes stay creamier inside, while thinner cakes become extra crispy.
Test one cake first
Cooking a single cake first helps you check seasoning and texture before frying the rest.
Add breadcrumbs for extra crunch
A light breadcrumb coating creates a crispier exterior.
Serve immediately
Potato cakes taste best when served fresh and warm while the outside is still crispy.
FAQs
Can I make potato cakes with leftover mashed potatoes?
Yes, leftover mashed potatoes work perfectly and often hold together better because they are slightly firmer.
Why are my potato cakes falling apart?
The mixture may need more binding ingredients such as flour or egg. Chilling the mixture can also help.
Can these potato cakes be baked instead of fried?
Yes, they can be baked at 400°F (200°C) for about 20 minutes, flipping halfway through.
What toppings go well with potato cakes?
Sour cream, yogurt sauce, fresh herbs, or even a fried egg pair beautifully with these cakes.
Can I freeze mashed potato cakes?
Yes, cooked potato cakes can be frozen for up to two months and reheated when needed.
What type of potatoes work best for mashed potatoes in this recipe?
Starchy potatoes such as Russet or Yukon Gold create the best creamy texture for potato cakes.
Conclusion
Onion and Cheddar Mashed Potato Cakes are a delicious way to turn simple mashed potatoes into a crispy and flavorful dish. With their golden crust, creamy center, and savory blend of onions and cheese, they are both comforting and versatile. Easy to prepare and perfect for using leftovers, these potato cakes can be served as a snack, side dish, or even a satisfying meal. Once you try them, they are likely to become a regular favorite in your kitchen.
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