The Duchess of Cambridge wowed at tonight’s charity gala dinner in London.

The looked glam tonight in a white Barbara Casasola dress as she arrived at a charity dinner at Spring restaurant in London

Kate, 37, is attending the first annual gala dinner in recognition of Addiction Awareness Week, hosted by Action on Addiction and chef Skye Gyngell.

She wore the off the shoulder dress and added a silver clutch and silver sparkly shoes, with her hair down in loose curls.

The Duchess has worn the long sleeved gown, priced at £1,580, before in 2016, when she presented the Art Fund Museum of the Year prize.

She also added a touch of sparkle to her outfit with a pair of Jimmy Choo glittering silver shoes, which cost £525, while her blue topaz and diamond hoops were from Kiki McDonough and cost £3,400.

The royal has been snapped in the glittering silver shoes before too, and was last spotted in the shimmering pumps as she attended the BAFTA awards in February of this year.

As a patron of Action on Addiction, since 2012, she also delivered a speech to celebrate the work of the charity, while also meeting former clients of Action on Addiction who were cooking the food for tonight’s dinner.

Action on Addiction is the only UK addictions charity that works across all the areas of research, treatment, family support and professional education

In a speech tonight she spoke of the effect of trauma in childhood on the scourge of addiction. The Duchess said the root causes of drug and alcohol addiction could often be traced back to the very earliest years, as she called for help to break the inter-generational cycle.

‘Sadly, for many who are suffering with addiction, they just don’t receive the help they need early enough,’ she told guests at the gala dinner.

Guests included Ronnie and Sally Wood, Bella Freud and film executive Eric Fellner, with a menu of a salad starter – radishes, carrots, broad beans, stracciatella and verbena oil – a main course of River Test trout, and a dessert of lemon cake with elderflower cream and gooseberries cooked under the eye of chef Skye Gyngell with help from former Action of Addiction clients.

The Duchess spent time in the restaurant’s kitchen pass speaking to Jay Otty, who has been clean and sober for nine years and now works front of house at The Brink, a dry bar in Liverpool, and Melanie Bennett, who describes her treatment at Action on Addiction’s Self-Help Addiction Recovery Programme (SHARP) in Liverpool as life-saving.

Leaning over a worktop of plates waiting to be filled for the evening, she said it must be ‘so rewarding’ for them to now be giving back to help others recover.

In a pre-dinner speech, the Duchess said: ‘Action on Addiction was one of my very first patronages, and as such, it is very close to my heart.