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A lemon and Swiss roll amaretti trifle is to be the official pudding for the Queen's Platinum Jubilee after winning a competition to find a new dessert.

Jemma Melvin created the dessert, inspired by the lemon posset served at the Queen's wedding to Prince Philip.

The trifle is made with layers of lemon curd swiss roll, custard, jelly, a mandarin coulis and amaretti biscuits.

It will join the ranks of royal-inspired dishes, such as coronation chicken and Victoria sponge.

Some 5,000 people, aged eight to 108, entered the nationwide competition to craft a new pudding to commemorate the Queen's 70-year reign, with entries whittled down to five finalists who subsequently competed before a panel of expert judges in a show on BBC One.

Jemma, a copywriter from Southport, Merseyside, beat fellow amateur bakers Kathryn MacLennan, Sam Smith, Shabnam Russo and Susan Gardner in a special BBC programme called The Jubilee Pudding: 70 years in the Baking, with the Duchess of Cornwall announcing the winner.

The competition was run by royal grocer Fortnum and Mason, in partnership with the Big Jubilee Lunch Charity, to create a pudding that had a memorable story behind it, tasted delicious, and was fit for the 96-year-old Queen.