Bolognese Potato Cake

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Bolognese Potato Cake

Category
Snack
Cuisine
American
Servings
4
Prep Time
20 min
Cook Time
15 min

These potato cakes are one of my favourite ways to use up leftover bolognese. You wrap cold mince sauce in seasoned mashed potato with a stuff of mozzarella in the middle, then fry the whole thing off until golden. The crust comes from the starch in the potato and flour binding together in hot oil, and when you cut one open you want the mozzarella molten and stretching.

Bolognese Potato Cake

The recipe makes 8 cakes, which feeds 4 as a main with a salad on the side, or 6 to 8 as a starter. They’re a great make-ahead option too. You can assemble them, line them up on a floured tray, and chill them in the fridge for an hour or even overnight before frying. The chill firms up the dough and stops the cakes splitting in the pan, so it’s worth doing even if you’re cooking them the same day.

Ingredient Notes

Mashed potato:

Use plain mashed potato that’s been seasoned and properly mashed but not loaded with cream and butter. The dough needs a bit of structure to hold the filling, and rich mash makes it too soft. Day-old mash from the fridge actually works best because the moisture has settled. If you’re starting from scratch, boil 800g of starchy potatoes (Sebago, King Edward or Maris Piper), drain them well and mash with a touch of salt and pepper.

Bolognese:

Any cooked bolognese or beef ragu works here, leftover or freshly made. The key is that it needs to be cold and reasonably thick. Hot or runny sauce will steam the potato dough as you assemble and cause the cakes to split in the pan. If you’ve made a fresh batch, chill it down in the fridge for at least an hour. A jarred pasta sauce reduced down with browned mince also works in a pinch.

Mozzarella:

I use grated low-moisture mozzarella here (the kind sold in blocks or bags for pizza) because it melts cleanly without releasing too much water. Fresh mozzarella has too much moisture and will turn the inside of the cake into a soggy mess. If you only have fresh, drain it really well, pat it dry, and use a bit less.

Ingredients

  • 3 cups mashed potato
  • ½ cup (75g) plain flour
  • 1 egg
  • sea salt and white pepper, to season
  • 1 cup bolognese meat sauce, cold
  • 1 cup (100g) mozzarella cheese, grated
  • ¼ cup olive oil
  • side salad to serve

Equipment

  • Chopping board
  • Chef’s knife
  • Large mixing bowl
  • Box grater (for the mozzarella)
  • Tablespoon (for portioning the bolognese)
  • Floured tray or baking sheet (for chilling the cakes)
  • Large heavy-based frying pan or skillet
  • Fish slice or spatula
  • Paper towel-lined plate (for draining)

Directions

Notes

Chef Tips

Chill the assembled cakes before frying

Once the cakes are sealed, lay them on a floured tray and pop them in the fridge for at least 15 to 30 minutes before frying. The cold firms up the potato dough and stops the cakes splitting and leaking cheese in the pan. If you’re prepping ahead, you can chill them for up to 24 hours.

Don’t crowd the pan

Cook the cakes 3 to 4 at a time depending on the size of your pan. If you crowd them in, the temperature of the oil drops and they end up greasy and pale instead of crisp and golden. Keep the heat at a steady medium so the dough cooks through to the centre and the cheese has time to melt before the outside burns.

Storage

The cooked cakes are best eaten straight away, but they keep well in the fridge for up to 2 days in an airtight container. Reheat them in a 180°C (355°F) oven for 8 to 10 minutes until heated through and crisp again. Don’t reheat in the microwave, the dough goes soggy. The uncooked, assembled cakes can also be frozen on the floured tray, then transferred to a container and kept frozen for up to a month. Cook them from frozen by frying slowly over medium-low heat for 5 to 6 minutes a side.

FAQs

Can I bake these instead of frying them?

Yes, though you lose some of that crispy crust. Brush both sides of each cake with olive oil and bake on a tray lined with baking paper at 200°C (390°F) for 20 minutes, turning halfway. They won’t be quite as golden as the fried version but they’re a good lower-fat option.

What can I serve them with?

A simple green salad dressed with lemon juice and olive oil cuts through the richness nicely. A tomato-based dipping sauce or marinara also works really well, especially if you’re serving them as a starter. For a more substantial meal, I’d serve them with a rocket and parmesan salad and a glass of red wine.

Can I make these vegetarian?

Yes. Swap the bolognese for a thick mushroom or lentil ragu, or use any leftover vegetable stew that’s been reduced down so it’s not too wet. The mozzarella stays the same.

What if my dough is too sticky to roll out?

If the dough’s sticking to the bench, dust both the bench and the top of the dough with extra flour. Wet mash is usually the cause. If it’s still really sticky after flouring, you can add an extra 2 tablespoons of flour to firm it up. Just don’t overwork it or the cakes turn rubbery.

Nutrition

Nutrition

Serving Size
1 serving
Calories
per serving
704
Amount/Serving % Daily Value
Carbs
61 grams
Protein
26 grams
Fat
39 grams
Saturated Fat
11 grams
Fiber
5 grams
Sugar
6 grams
Sodium
720 milligrams
Cholesterol
105 milligrams
Potassium
750 milligrams

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