by the 4th of february, then five finalists will be invited to bake their creations for an expertjudging panel including dame mary berry, the chef monica galetti, and the queen's head chef mark flanagan. the pudding will be just one of the ingredients to be enjoyed during the platinumjubilee bank holiday weekend, final details of which have been confirmed by the palace. on thursday, the 2nd ofjune, the queen's birthday parade, trooping the colour, will take place on horse guards parade. that evening, jubilee beacons will be lit in more than 1,500 locations around the united kingdom and the commonwealth. on friday, the 3rd ofjune, a service of thanksgiving for the queen's reign will be held at st paul's cathedral. on saturday, the 4th ofjune, the bbc platinum party, a live concert, will take place in the grounds of buckingham palace. a public ballot for tickets will be launched next month. finally, on sunday, the 5th ofjune, the big jubilee lunch will be staged