I checked regs, seems we're all good: http://www.food.gov.uk/business-industry/imports/want_to_import/personalimports

"Providing the food parcel you wish to send is to a private, named individual and contains no meat and meat products, dairy products or any particular restricted products (for example Kava kava, which is not permitted either as a personal import or a commercial import) you may send a reasonable amount for personal consumption."