Treacle and chestnut tart with spiced quince burnt butter ice-cream

1.For burnt butter ice-cream, cook butter in a saucepan over medium-high heat until browned (6-8 minutes), remove from heat, set aside. Meanwhile, combine milk, cream and glucose in a saucepan and bring to the boil over medium-high heat, stirring occasionally. Meanwhile, whisk yolks and sugar in a large bowl until pale and creamy (1-2 minutes). Add milk mixture, whisking continuously, return mixture to pan and whisk continuously over low heat until mixture thickly coats the back of a wooden spoon (7-10 minutes). Remove from heat, whisk in browned butter, strain through a fine sieve, refrigerate overnight for flavours to develop, then freeze in an ice-cream machine according to manufacturer’s instructions. Makes about 1 litre.

2.For spiced quince, combine ingredients (except quince, peel and trimmings) in a saucepan with 750ml water, bring to the boil over medium heat. Add quince, peel and trimmings, cover closely with baking paper, weight with a plate, cover with a lid, reduce heat to low and simmer until quince is tender and dark (2-3 hours). Remove quince with a slotted spoon, cut into wedges, then strain cooking liquid through a fine sieve (discard solids), pour back over quince and set aside.

3.Meanwhile, for sweet pastry, preheat oven to 180C. Pulse flour, butter and icing sugar in a food processor until coarse crumbs form, add egg and pulse until a dough forms. Turn onto a lightly floured surface, knead lightly and shape into a disc, wrap in plastic wrap and refrigerate to rest (30 minutes). Roll out on a lightly floured surface into a 2mm-thick rectangle and line a 13cm x 36cm rectangular tart tin, trim edges and refrigerate to rest (30 minutes). Blind bake until golden (10-12 minutes), remove paper and weights, bake until golden and crisp (10-12 minutes), set aside.

4.Cook butter in a saucepan over medium heat until browned (2-3 minutes), remove from heat and strain through a fine sieve (discard sediment). Whisk eggs, cream and 2 tsp fine sea salt in a separate bowl. Heat golden syrup in a saucepan over low heat, add browned butter, then add to cream mixture. Add breadcrumbs and chestnuts, mix well, then pour into tart and bake until just set (15-20 minutes). Cool in tin on a wire rack, then turn out and cool completely. Serve tart at room temperature with warm quince and a little syrup and burnt butter ice-cream.