Home
Recipes
Welsh onion cake with caerphilly

Potato gratin in pan

Welsh onion cake with caerphilly

Name: Welsh onion cake with caerphilly
Prep time: 30 min
Cook time: 1 h 5 min
Total time: 1 h 35 min
Yield: 6
Ingredients: 200g butter plus extra for the tin; drizzle of oil; 3 large onions thinly sliced; 1 leek sliced; 1kg floury potatoes such as Maris Piper or Désirée, peeled and thinly sliced (use a mandoline or the fine slicing blade of a food processor); 150g Caerphilly cheese, crumbled (or another sharp, crumbly cheese)

Cassie Best

Save recipe

Serves 6

Easy

Prep: 30 mins

Cook: 1 hr and 5 mins

A star rating of 4 out of 5.6 ratingsRate

loading...

Take this Welsh classic to the next level by adding sharp, salty cheese and sweet leeks. It’s the perfect dish for St David’s Day or an easy family dinner

Gluten-free

Vegetarian

Skip to ingredients

Alternatives

Complete the dish

Showing items 1 to 3 of 3

Welsh cakes

A star rating of 4.7 out of 5.173 ratings

Welsh rarebit muffins

A star rating of 4 out of 5.72 ratings

Bara brith

A star rating of 4.8 out of 5.62 ratings

For another Welsh speciality, try our cawl recipe.

Ingredients

Nutrition

Units:

MetricUS

200g butter

plus extra for the tin
drizzle of oil
3 large onions

thinly sliced
1 leek

sliced
1kg floury potatoes

such as Maris Piper or Désirée, peeled and thinly sliced (use a mandoline or the fine slicing blade of a food processor)
150g Caerphilly

cheese, crumbled (or another sharp, crumbly cheese)

Keep the screen awake with cook mode on the Good Food app.

Nutrition: per serving

kcal542
fat36g
saturates22g
carbs41g
sugars9g
fibre7g
protein11g
salt0.9g

Method

step 1

In a large pan, heat a knob of the butter with a drizzle of oil. Once the butter is foaming, add the onions, leek and some seasoning and cook for 15 mins until the onions are soft and sticky, stirring occasionally. Butter a 22cm cake tin or baking dish (alternatively, you can assemble the cake in the pan you’re already using if it’s ovenproof).
step 2

In a separate pan, melt the remaining butter. Toss the sliced potatoes with the melted butter and plenty of seasoning. Heat oven to 200C/180C fan/gas 6.
step 3

Arrange the potato slices over the base of the dish in a spiral or in concentric circles. Top with some of the onion mix, sprinkle over a layer of cheese and continue layering, finishing with a final round of potato slices. Press down firmly with your hands to compact the layers. Bake for 45-50 mins until the potatoes are golden brown and tender; cover with foil if the cake starts to take on too much colour. Turn out onto a plate to serve.

RECIPE TIPS

HOW TO USE UP LEFTOVERS

Fry leftover wedges of Welsh onion cake until crispy and hot, then serve with bacon and poached eggs for a filling brunch. Alternatively, make leek and potato pasties. Roughly chop leftover Welsh onion cake, and pile onto the centre of circles of ready-rolled shortcrust pastry. Brush the edges with beaten egg, then crimp together. Brush the tops with more egg, put on a baking sheet and cook at 200C/180C fan/gas 6 for 25-30 mins until golden brown.

Recipe from Good Food magazine, February 2019

Comments, questions and tips

Rate this recipe

What is your star rating out of 5?1 star out of 52 stars out of 53 stars out of 54 stars out of 55 stars out of 5

Choose the type of message you'd like to post

CommentQuestionTip

Overall rating

A star rating of 4 out of 5.6 ratings

Get 3 months of Good Food All Access

Get 3 months of Good Food All Access for just £6. Find triple-tested recipes that take the stress out of deciding what to cook, spend less time planning, and more time enjoying the season.

Subscribe now