onion tart tatin

onion tart tatin


For the filling

500g onions (peeled weight), sliced
2 tbsp balsamic vinegar
2 tbsp oil
1 tbsp sugar
2 teaspoons oregano

For the pastry

110ml vegetable oil
225g self-raising flour
35g instant oat cereal why?
2 teaspoons mustard powder
We are using supermarket own version of ready brek cereal in our recipes to make sure that you and your family get enough calcium and vitamin B12 in your diet. If you are following the month's plan in its entirety, you will need this to stay healthy.


First make the pastry: mix the flour, oil and mustard and a pinch of salt with enough cold water to bring the mix together into a wet dough which comes away cleanly from the sides of your mixing bowl. The dough should be easily manipulated and stretchy, but not stick to your fingers.

Leave to rest for half an hour at room temperature.

Meanwhile, prep the filling. Heat the oil and sugar on your hob in an oven and hob-proof dish. (Flan dish, large flat bottomed pyrex lasagne dish, etc)

Meanwhile, slice the onions. Arrange beautiful slices on the base of your oven-proof dish and cook for around 10 minutes. Then add the balsamic and oregano. Put the oven on at GM 4 or 180C.

Keep an eye on the pan and cook for another 10 mins, they should go a lovely brown colour but will burn easily. When they are reduced down, gently press down to form an even layer.

Place your pastry crust on top (doesn’t matter if it doesn’t cover the whole thing or has holes in as the upside-down nature of it means it will still cook!) Bake for 35-40 mins, until golden brown Turn out onto a plate. This will give 4 generous portions. The balsamic adds a little extra tartness that is very tasty!

serve with 320g peas and 800g carrots


It was lovely! I'd make it again. Probably twice a month. More for lunches for me (I'd quarter the ingredients to make a small one for me as a lunch). Actually, it would look lovely as little individual tart whatsits, for a posh dinner I'd probably make up a little red wine reduction and pour that over it on the plate. 8 out of 10. - D.T. Scotland

nutritional information

This recipe contains per meal (including side dishes):
(K)calories- 730
protein (g)- 12
fat (g)-30
sat fat (g)- 4.59
carb (g)- 101
5 a day portions- 2.5
fibre (g)- 9
salt (g)- 0
calcium (mg)- 279
iron (mg)- 6

The salt value excludes any you have added yourself, as each family's tastes will differ