Roasted onion tarte tatin with cheddar mascarpone

Roasted onion tarte tatin with cheddar mascarpone
  • Serves icon Serves 4-6
  • Time icon Hands-on time 45 min, plus 35-40 min oven time

Marcus Wareing’s roasted onion tarte tatin makes a hero of the humble onion. Serve the rich, sticky tart with a dollop of cheddar mascarpone. This recipe is from Marcus’ Kitchen by Marcus Wareing (Harper Collins £22).

Sweet tooth? Check out our classic apple tarte tatin.

 

Nutrition: per serving

Calories
590kcals
Fat
41.8g (25g saturated)
Protein
11.3g
Carbohydrates
40.4g (22.1g sugars)
Fibre
3.8g
Salt
1.1g
Calories
590kcals
Fat
41.8g (25g saturated)
Protein
11.3g
Carbohydrates
40.4g (22.1g sugars)
Fibre
3.8g
Salt
1.1g

Ingredients

  • 300g all-butter puff pastry
  • Plain flour for dusting
  • 100g unsalted butter, cubed
  • 4-5 medium onions, halved from top to bottom (skin on and root attached)
  • 75g caster sugar
  • 2 tbsp sherry vinegar
  • 2 tbsp Worcestershire sauce (or Henderson’s Relish for vegetarians)
  • 2 star anise
  • 2 thyme sprigs, plus extra to garnish

For the cheddar mascarpone

  • 150g mature cheddar, grated
  • 100g mascarpone

You’ll also need

  • 20-23cm ovenproof frying pan

Method

  1. Roll out the puff pastry on a lightly floured worksurface to 3-4mm thick, then use a roughly 24cm diameter plate as a template to cut the pastry into a circle. Put the pastry disc in the fridge to chill until needed.
  2. Put a large ovenproof frying pan over a high heat and add 25g of the butter. Once it begins to foam, put the onions in the pan cut-side down and season. Cook for 4-5 minutes until the flat surfaces of the onions are well browned. Remove from the pan and cool. Once cool, remove any dry layers of onion/skin and discard. Keeping a small piece of root attached, slice each onion half lengthways into 2 wedges.
  3. Heat the oven to 170°C fan/gas 5. Clean the frying pan, then put it over a medium heat. Once hot, add the caster sugar and cook slowly for 5 minutes, swirling it gently if necessary to help it melt but not stirring, until you have a deep amber caramel. Just before it begins to smoke, turn off the heat, then deglaze the pan with the vinegar and Worcestershire sauce. Keep stirring gently. Once the liquids are incorporated, add the remaining cubed butter and whisk until emulsified. You may find it easier to add the butter in small batches to keep the caramel from splitting. Allow the caramel to set for 5 minutes.
  4. Once the caramel has set, scatter the star anise and thyme sprigs evenly over it. Arrange the onion quarters on top of the caramel in a circle around the edge of the pan, then in the centre of the pan in the same pattern. Keep the onion quarters as close together as possible as they will shrink during cooking. Remove the puff pastry disc from the fridge and place it over the arranged onions, using a spoon to tuck the pastry in and around the inside edges of the frying pan. Make 6 tiny cuts evenly over the top of the pastry – this will allow any steam to escape while the tarte is baking.
  5. Bake in the oven for 35-40 minutes until the pastry is evenly risen and golden brown. Remove from the oven and allow to cool for 10 minutes.
  6. While the tarte cools, put the ingredients for the cheddar mascarpone in a food processor or blender and whizz for 30 seconds until you have a thick, smooth cream.
  7. To finish the tarte, run a small knife around the inside of the pan to ease away the pastry. Place a large serving dish on top of the pan, then quickly turn the pan upside down, releasing the tarte (this needs to be done swiftly to prevent any liquid running out). Scatter over some extra thyme, then serve in slices with the cheddar mascarpone.

Recipe By

Marcus Wareing

Subscribe

Fancy getting a copy in print?

Subscribe to our magazine

Rate & review

Rate

Reviews

Share a tip

Or, how about...?

Save recipe icon Save recipe icon Save recipe

Brunch recipes

Marcus Wareing’s omelette Arnold Bennett

This recipe was reputedly created for the eponymous writer whilst he was penning a novel...

Save recipe icon Save recipe icon Save recipe

Vegetarian tart recipes

Caramelised onion tart

This simple vegetarian starter is perfect for a lunch party or Boxing Day buffet.

Save recipe icon Save recipe icon Save recipe

Vegetarian tart recipes

Creamy onion tart

This classic French recipe, also known as zewelwai, is great with smoked bacon lardons or...

Save recipe icon Save recipe icon Save recipe

Tarte tatin recipes

Caramelised chicory and onion tarte tatin

Cooking chicory gives it a more mellow flavour and a melting texture – perfect for...

Subscribe to our magazine

Subscribe to delicious. magazine for HALF PRICE

Subscribe

Join our newsletter

Packed with menu ideas, recipes, latest competitions and more...

We treat your data with care. See our privacy policy. By signing up, you are agreeing to delicious.’ terms and conditions. Unsubscribe at any time.