Hotel Chocolat saw revenues for the 13 weeks to the end of December increase by 15% on a year ago with retail, digital and wholesale channels all achieving growth.
The group said it opened 10 new stores during the six months to the end of December and now had 100 stores in the UK.
It said trading since December continued to be in line with management's expectations.
Co-founder and chief executive Angus Thirlwell said: 'We performed well, our new store openings contributed 6% of our growth in the period, with the balance of the growth coming from existing stores, digital and wholesale channels.
'Constant innovation saw our largest ever seasonal range in Christmas 2017 and we maintained strong availability of products to capitalise on the last minute rush, without any excess stock overhang.
'Highlights included a successful cocoa beauty launch, with a strong story behind it; rooted in our Caribbean eco-hotel and plantation.
'The launch of Supermilk Pure, our first-ever no-added-sugar milk chocolate, was also very successful and resonated strongly with customers seeking wellness and authenticity without compromise.'
The board expects to announce the group's results for the six months ended 31 Dec on 21 Feb.