Step 1

To make the pastry, put the flour and butter in a bowl and rub together with your fingertips until it resembles breadcrumbs. Mix in the icing sugar followed by the yolks. If the pastry feels too dry, add 2 tbsp water. Shape into a ball, flatten it out into a disc, wrap it in cling film, then chill for 30 mins.

Step 2

Roll out the pastry on a lightly floured surface until big enough to line a 23cm fluted tart tin, about 3cm deep. Line the tin with the pastry, allowing the edges to overhang. Chill for another 30 mins.

Step 3

Heat oven to 200C/180C fan/gas Line the tart with baking parchment and baking beans. Bake blind for 20 mins. Remove the beans and parchment and bake for 10-15 mins more until the pastry is golden and crisp.

Step 4

While the pastry is cooking, mix the golden syrup, honey, breadcrumbs, grapefruit zest, beer and eggs together in a large jug or bowl.

Step 5

Lower oven to 160C/140C fan/gas Use a small serrated knife to trim the pastry edges, then fill with the treacle mixture. Bake for 55 mins-1 hr until golden. Scatter over the honeycomb shards before serving, if you like.