Leftover Foods: Potato Cake With a Poached Egg

Updated on April 1, 2020
Gabriel Wilson profile image

Gabriel loves to cook all kinds of foods, from baking to a full roast dinner.

Potato cake with a poached egg
Potato cake with a poached egg | Source

What do you do with leftover mash potato, three eggs and a single spring onion? Make delicious potato cakes and top with a poached egg, of course.

I am not a lover of the supermarket; in fact, I find it very stressful. I always get the dodgy trolley and spend ages queuing at the meat counter, the deli counter and the bread counter. Going through the check-out is madness—what does one family do with 10 chickens? It is because of this that I will rummage through my fridge and make something edible out of very little; hence this recipe.

Cook Time

Prep time: 2 min
Cook time: 7 min
Ready in: 9 min
Yields: 2 servings


  • 2 cups potatoes, cooked and mashed
  • 3 eggs
  • 1 spring onion, finely diced
  • 1 tablespoon vegetable oil
  • 1 teaspoon white wine or cider vinegar
  • A twist cracked black pepper, to serve
  • A pinch dried chilli flakes (optional)
Golden Brown Potato Cakes
Golden Brown Potato Cakes | Source


  1. Fill a deep-bottomed pot with water and bring to a gentle simmer.
  2. In a large bowl, beat one of the eggs adding in the leftover mashed potatoes. Using a fork, mash the egg and potato to create a soft texture.
  3. Add in the diced spring onion. Using a fork, mix together to distribute evenly.
  4. Heat the oil in a nonstick frying pan. Place your egg/cooking rings into the frying pan and spoon in the potato and spring onion mixture. If you don't have cooking rings, aim for a circular shape.
  5. Once the bottom is cooked (2 to 3 minutes), remove the cooking rings and turn over and cook for a further 2 to 3 minutes. We want a golden brown colour on both sides.
  6. Add the white wine vinegar to the simmering water. We want a bare bubble, not a mad simmer.
  7. Crack the remaining 2 eggs into two small cups and gently lower into the water, allowing the water to come into the cup meeting the egg white. This helps solidify the egg white. Fresh eggs will take less than 1 minute, so watch carefully.
  8. Remove your potage cakes from the frying pan to your serving plates, top each cake with a poached egg and a twist of cracked black pepper and a sprinkle of dried chilli flakes if using.

Poached Eggs: Photo Guide

Click thumbnail to view full-size
Poaching eggsPoaching eggsPoaching eggsPoaching eggsPoaching eggsPoached eggsPoached eggsPoached eggs
Poaching eggs
Poaching eggs | Source
Poaching eggs
Poaching eggs | Source
Poaching eggs
Poaching eggs | Source
Poaching eggs
Poaching eggs | Source
Poaching eggs
Poaching eggs | Source
Poached eggs
Poached eggs | Source
Poached eggs
Poached eggs | Source
Poached eggs
Poached eggs | Source

The Secret to Perfect Poached Eggs

  • The water must be at a bare simmer.
  • Use a light flavoured vinegar to help solidify the egg white, white wine, fruit or cider vinegar all work well. A strong vinegar will taint the eggs.
  • Use the freshest eggs you can get your hands on.
  • Using small cups lowered into the water helps solidify the egg white as it hits the water shaping the white in the cup.
  • Watch the eggs as they will cook quickly.
  • Practice!

These stainless steel egg/cooking rings are so versatile, sturdy, easy to clean and last for ages. My daughter loves making mushy pea pancakes to have with her roast chicken dinner, what a result!

Potato cakes using egg rings/cooking rings
Potato cakes using egg rings/cooking rings | Source
Round Egg Ring 4" (Stainless Steel) (Set of 3)
Round Egg Ring 4" (Stainless Steel) (Set of 3)
I use my egg rings or cooking rings all the time, especially for potato cakes, fried eggs, mini omelettes, pancakes, biscuit bases and even cookies...

Leftover Tips

  • Numerous vegetables can be made into a cake using this method: carrots, parsnips, pumpkin, sweet potatoes, cabbage, cauliflower, broccoli and so on. Cook and mash.
  • Pulses too can be blitzed and added for bulk.
  • Dice leftover vegetables to add to your vegetable cake: peppers, leeks, onions, celery.
  • Add dried or fresh herbs for example chives, parsley, basil, coriander.
  • Add some spice: curry powder, paprika, crushed garlic, fresh or dried green/red chillies.

What do you do with your leftover vegetables?

See results

© 2020 Gabriel Wilson


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    • Gabriel Wilson profile imageAUTHOR

      Gabriel Wilson 

      6 weeks ago from Madeira, Portugal

      Hi Liz, me too. I love eggs and potatoes and am always looking for a new dish. I hope you enjoy :)

    • lizmalay profile image


      6 weeks ago from USA

      I would love to make this for breakfast. My husband and I are big fan of eggs and potatoes for breakfast. There are times I cook them for dinner when I'm out of ideas what to cook for dinner. Thanks for sharing the recipe! I'm excited to try it.

    • Gabriel Wilson profile imageAUTHOR

      Gabriel Wilson 

      4 months ago from Madeira, Portugal

      Hi Peggy. It works well, and the soft egg yolk compliments the potato :)

    • Peggy W profile image

      Peggy Woods 

      4 months ago from Houston, Texas

      We often use leftover potatos by making potato cakes. I like your idea of a poached egg over it to add protein and extra nutrition.

    • Gabriel Wilson profile imageAUTHOR

      Gabriel Wilson 

      4 months ago from Madeira, Portugal

      Hi Liz. I have a few more on the way. Stay safe :)

    • Eurofile profile image

      Liz Westwood 

      4 months ago from UK

      At a time when many in the UK are getting accustomed to making better use of leftovers due to lockdown, this is a very useful and helpful recipe.


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