Heritage tomato tart with tomato salad recipe
 This lightning quick tomato tart is a delicious summery option for when unexpected visitors come calling. For this recipe you will need a chefs' blow torch. 400g/14oz ready-made all-butter puff pastryplain flour, for dusting1 free-range egg yolk, beaten200g/7oz Gruyère, grated (or similar vegetarian cheese)400g/14oz mixed heritage tomatoes, thickly sliced4 sprigs fresh thyme, leaves only1 tbsp rapeseed oilsalt and freshly ground black pepper 400g/14oz ready-made all-butter puff pastry plain flour, for dusting 1 free-range egg yolk, beaten 200g/7oz Gruyère, grated (or similar vegetarian cheese) 400g/14oz mixed heritage tomatoes, thickly sliced 4 sprigs fresh thyme, leaves only 1 tbsp rapeseed oil salt and freshly ground black pepper 300g/10½oz heritage tomatoes1 red onion, thickly sliced2 heads Romaine lettuce, roots removed, cut into thick slices4 tbsp vegetable oil1 tbsp white wine vinegar1 tbsp Dijon mustard1 egg yolk 300g/10½oz heritage tomatoes 1 red onion, thickly sliced 2 heads Romaine lettuce, roots removed, cut into thick slices 4 tbsp vegetable oil 1 tbsp white wine vinegar 1 tbsp Dijon mustard 1 egg yolk Method For the tomato tart, preheat the oven to 210C/190C Fan/Gas 7.Roll out the pastry on a lightly floured work surface to form a large square about 3mm thick.Cut 4 x 17.5cm/7in circles from the pastry using an upturned bowl or cake tin. Transfer each to a baking tray. Using a sharp knife, score a 1.5cm/½in border around the edge of each pastry circle. Brush each border with a little of the egg yolk.Pile a quarter of the grated Gruyère in the centre of each pastry circle. Arrange the tomato slices in concentric circles on top of the cheese. Season, to taste, with salt and freshly ground black pepper, then scatter over the thyme leaves and drizzle with a little rapeseed oil.Bake the tarts in the oven for 12-15 minutes, or until the pastry borders have risen and are golden-brown and the filling is bubbling. Meanwhile, for the tomato salad, lay the tomatoes, red onion and lettuce on a roasting tray and drizzle over a little of the vegetable oil. Mix well to coat everything in the oil. Place the roasting tray onto a heatproof surface and, using a chefs' blow torch, char until caramelised – this should take 4-5 minutes. Alternatively, preheat your grill to its highest setting and grill the vegetables for 4-5 minutes.Shake the vinegar, mustard, egg yolk and the remaining vegetable oil in a clean, sealed jam jar until well combined, then season, to taste, with salt and freshly ground black pepper. To serve, place a tart on each serving plate. Transfer the blow-torched vegetables to a large bowl and drizzle over enough of the dressing to coat the leaves. Mix the salad to coat it in the dressing, then serve. For the tomato tart, preheat the oven to 210C/190C Fan/Gas 7. For the tomato tart, preheat the oven to 210C/190C Fan/Gas 7. Roll out the pastry on a lightly floured work surface to form a large square about 3mm thick. Roll out the pastry on a lightly floured work surface to form a large square about 3mm thick. Cut 4 x 17.5cm/7in circles from the pastry using an upturned bowl or cake tin. Transfer each to a baking tray. Cut 4 x 17.5cm/7in circles from the pastry using an upturned bowl or cake tin. Transfer each to a baking tray. Using a sharp knife, score a 1.5cm/½in border around the edge of each pastry circle. Brush each border with a little of the egg yolk. Using a sharp knife, score a 1.5cm/½in border around the edge of each pastry circle. Brush each border with a little of the egg yolk. Pile a quarter of the grated Gruyère in the centre of each pastry circle. Arrange the tomato slices in concentric circles on top of the cheese. Season, to taste, with salt and freshly ground black pepper, then scatter over the thyme leaves and drizzle with a little rapeseed oil. Pile a quarter of the grated Gruyère in the centre of each pastry circle. Arrange the tomato slices in concentric circles on top of the cheese. Season, to taste, with salt and freshly ground black pepper, then scatter over the thyme leaves and drizzle with a little rapeseed oil. Bake the tarts in the oven for 12-15 minutes, or until the pastry borders have risen and are golden-brown and the filling is bubbling. Bake the tarts in the oven for 12-15 minutes, or until the pastry borders have risen and are golden-brown and the filling is bubbling. Meanwhile, for the tomato salad, lay the tomatoes, red onion and lettuce on a roasting tray and drizzle over a little of the vegetable oil. Mix well to coat everything in the oil. Meanwhile, for the tomato salad, lay the tomatoes, red onion and lettuce on a roasting tray and drizzle over a little of the vegetable oil. Mix well to coat everything in the oil. Place the roasting tray onto a heatproof surface and, using a chefs' blow torch, char until caramelised – this should take 4-5 minutes. Alternatively, preheat your grill to its highest setting and grill the vegetables for 4-5 minutes. Place the roasting tray onto a heatproof surface and, using a chefs' blow torch, char until caramelised – this should take 4-5 minutes. Alternatively, preheat your grill to its highest setting and grill the vegetables for 4-5 minutes. Shake the vinegar, mustard, egg yolk and the remaining vegetable oil in a clean, sealed jam jar until well combined, then season, to taste, with salt and freshly ground black pepper. Shake the vinegar, mustard, egg yolk and the remaining vegetable oil in a clean, sealed jam jar until well combined, then season, to taste, with salt and freshly ground black pepper. To serve, place a tart on each serving plate. Transfer the blow-torched vegetables to a large bowl and drizzle over enough of the dressing to coat the leaves. Mix the salad to coat it in the dressing, then serve. To serve, place a tart on each serving plate. Transfer the blow-torched vegetables to a large bowl and drizzle over enough of the dressing to coat the leaves. Mix the salad to coat it in the dressing, then serve. Recipe tips Any leftover salad dressing can be kept in the sealed jar in the fridge for up to 1 week, as long as the egg yolk was fresh when you made it.