- Recipes
- White Onion Tart…
White Onion Tart
-
8 serving
Prep time:
Cook time:
Serves: 8
Share recipe
Ingredients
- 230g plain flour, plus extra for dusting
- 3 tsp sea salt
- 125g unsalted butter, cubed
- 2 tsp cider vinegar
- 3 medium eggs, 1 beaten
- 2 tbsp olive oil
- 4 white onions, finely sliced
- 200ml single cream
- 20g vegetarian Italian hard cheese (or parmesan), finely grated
- 1 mixed leaf salad (optional)
Method
Step 1
For the pastry, rub the flour, 1 tsp salt and the butter together in a bowl with your fingers until it resembles fine breadcrumbs (or use a food processor). Make a well in the centre, add the vinegar, 1 beaten egg and 1 tbsp cold water. Bring together by hand into a ball, flatten into a 2-3cm-thick disc. Wrap or cover and chill for 1 hr.
Step 2
Meanwhile, heat the oil in a large saucepan over a low-medium heat. Add the onions and the remaining 2 tsp salt, mix well, then cover and cook for 1 hr, stirring occasionally, until soft and sweet. Remove from the heat; leave to cool.
Step 3
Preheat the oven to 180°C/160°C fan/gas 4. Roll out the pastry on a lightly floured surface to a 3mm-thick circle, large enough to line a 20 cm fluted tart tin with a little overhang. Drape it over the tin and press into the edges. Chill for 20 mins, then blind bake, covered with baking paper and baking beans or rice, for 15 mins. Remove the beans and paper and return to the oven for 5 mins more. Remove from the oven, carefully trim the overhang and leave to cool.
Step 4
In a bowl, whisk the remaining 2 eggs with the cream, then stir in the cooled onions.
Step 5
Fill the pastry evenly with the onion mixture; scatter over the cheese. Bake for 30 mins, until bronzed with a slight wobble. Leave to cool for 15 mins before removing from the tin; serve with a mixed salad, if liked.
Tips or serving suggestions
Allow 1 hr 20 mins for chilling, plus extra time for cooling.
Shop the ingredients
-
On OfferValue
Ocado British Unsalted Butter 250g
250g£1.69
For over 10,000 products you know (and love), we now match the price of your like-for-like shop to tesco.com, including promotions and Clubcard prices. If we’re not already the same price or less, we’ll email you a voucher for the difference within 72 hours. -
Value
Ocado Mixed Leaf Salad 150g
150g£1.25
For over 10,000 products you know (and love), we now match the price of your like-for-like shop to tesco.com, including promotions and Clubcard prices. If we’re not already the same price or less, we’ll email you a voucher for the difference within 72 hours. -
Value
Ocado Medium Free Range Eggs 6 per pack
6 per pack£1.50
For over 10,000 products you know (and love), we now match the price of your like-for-like shop to tesco.com, including promotions and Clubcard prices. If we’re not already the same price or less, we’ll email you a voucher for the difference within 72 hours. -
Value
Ocado Olive Oil 1L
1L£7.80
For over 10,000 products you know (and love), we now match the price of your like-for-like shop to tesco.com, including promotions and Clubcard prices. If we’re not already the same price or less, we’ll email you a voucher for the difference within 72 hours. -
Value
Ocado British Single Cream 300ml
300ml£1.20
For over 10,000 products you know (and love), we now match the price of your like-for-like shop to tesco.com, including promotions and Clubcard prices. If we’re not already the same price or less, we’ll email you a voucher for the difference within 72 hours. -
Other
-
Saxa Fine Sea Salt 350g
350g£1.65
For over 10,000 products you know (and love), we now match the price of your like-for-like shop to tesco.com, including promotions and Clubcard prices. If we’re not already the same price or less, we’ll email you a voucher for the difference within 72 hours.