Luisa, who make it through to the final of The Apprentice, was at the London event to showcase her new brand Bakers Toolkit.
The mum-of-one, 25, first unveiled her business idea on the BBC1 show and now it seems the concept is up and ready for consumers to buy.
Luisa was joined at Earls Court by her mother Christina and together they posed for pictures while wearing Bakers Toolkit aprons, featuring a cartoon drawing of the star.
Previously, Luisa said: "My mum is an amazing role model to me. I love my mum."
In another snap, which was posted on Twitter, Luisa is stood next to a branding board. The advert has the large official headshot of her that was used on The Apprentice.
Alongside it, Luisa joked: "Nothing like a bit of self promotion @CakeandBakeShow."
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