Let’s set the record straight: leeks are anything but a ‘poor man’s asparagus.’ In fact, these sweet, tender alliums are a culinary star in their own right, and this recipe proves it. We’re creating stunning individual upside-down tarts, a clever technique that caramelises the leeks in butter and lemon while guaranteeing a perfectly crisp, golden puff pastry base.
The real magic happens when you pair them with seasonal wild garlic. If you spot these vibrant leaves at a market, grab them! Their unique, mellow garlic flavour is unforgettable. Don’t worry if you can’t find any; spinach and a touch of fresh garlic make a delicious alternative. Serve these elegant tarts as a light lunch with a crisp salad, or make it a more substantial meal with a perfectly fried egg balanced on top.
Ingredients
• SERVES 4
• 60g / 4 tbsp unsalted butter
• 4 large leeks, trimmed, washed, and cut into four equal lengths each
• 1 unwaxed lemon, finely grated zest and juice
• Sea salt and freshly ground black pepper
• Plain flour, for dusting
• 250g / 9 oz all-butter puff pastry
• 100g / ⅔ cup pine nuts, toasted
• 1 tbsp sunflower oil
• 200g / 7 oz wild garlic, washed
• For the substitute: 200g / 7 oz baby leaf spinach and 1 garlic clove, finely chopped
Instructions
1. In a large frying pan, melt the butter over a medium heat. Once it stops bubbling, add the 16 leek lengths, lemon zest, and juice. Season well with salt and pepper.
2. Cook the leeks gently for 12-15 minutes, turning them every 3 minutes to ensure they cook evenly. They should be soft enough to be easily pierced with a knife. Set aside in the pan with their buttery juices.
3. Preheat your oven to 180°C / 160°C Fan / Gas Mark 4. On a lightly floured surface, roll out the puff pastry to a rectangle of about 30 x 20cm.
4. Slice the pastry into four equal smaller rectangles. A pizza cutter works perfectly for this.
5. On a baking tray, arrange four sets of four leek lengths, creating four leek ‘rectangles’ slightly smaller than your pastry pieces.
6. Spoon 1 tbsp of the buttery lemon juices over each leek pile and sprinkle with most of the toasted pine nuts, reserving some for garnish.
7. Carefully lay a pastry rectangle over each pile of leeks, ensuring it covers them completely. Press the leeks closer together if needed.
8. Bake for 10-12 minutes, or until the pastry is golden brown and well-risen.
9. While the tarts bake, prepare the greens. Discard any remaining liquid from the leek pan but do not wash it. Add the sunflower oil and heat.
10. Add the wild garlic and a pinch of salt. It will look like a lot, but it will wilt down in a minute or two. Turn it constantly to cook evenly. (If using the substitute, sauté the chopped garlic for one minute before adding the spinach and wilting).
11. To serve, let the tarts cool for a moment. Slide a spatula or fish slice under one tart, and carefully flip it over onto a plate so the pastry is now the base. Garnish with the remaining pine nuts and serve the wilted greens on top or alongside.
Nutritional Information
• Serves: 4
• Calories per serving: 575 kcal
• Fat: 45g
• Carbohydrates: 32g
• Protein: 12g
• (Note: These are estimates and can vary based on specific used.)
Pro Tips
• Don’t chop your leeks into small discs. Keeping them in long lengths helps them hold their shape beautifully during cooking.
• Baking the tarts ‘upside-down’ with the pastry on top is the secret to a perfectly crisp, non-soggy base.
• Don’t wash the leek pan before wilting the greens. The leftover buttery, lemony juices add a fantastic layer of extra flavour.
• Make the most of wild garlic season! Finely slice extra leaves into soups, toss them through pasta with warm olive oil, or fold them into scrambled eggs.
• Elevate your tart by topping it with a fried egg for a hearty brunch or a sprinkle of grated Parmesan cheese for a savoury kick.
FAQ
Q: Can I make this leek tart recipe vegan
A: Yes, you can easily adapt this recipe to be fully vegan. Use a high-quality vegan butter or olive oil to caramelise the leeks. For the pastry, ensure you buy a brand of puff pastry that is made with vegetable oils instead of butter – many store-bought options are ‘accidentally vegan,’ but always check the label to be sure.
Q: How can I add more protein to this vegetarian tart
A: To make this a more substantial vegetarian meal, the recipe suggests a fried egg on top. For other protein-rich options, you could serve the tart with a side of creamy cannellini beans tossed in lemon and herbs, or crumble some feta or goat’s cheese over the leeks before adding the pastry if you eat dairy.
Q: Can I prepare these leek tarts in advance
A: For the best results and crispiest pastry, these tarts are best baked and served fresh. However, you can save time by cooking the leeks up to a day in advance. Store them in their buttery juices in an airtight container in the fridge. When you’re ready to eat, simply assemble the tarts with the cold leeks and bake as directed.
