As with any bought-in gift, check allergen information on the packaging or with the retailer directly if buying for someone whose dietary needs are not known well.
Small share bags do a similar job from the other direction. Rather than splitting a box, you drop a whole bag into a single stocking, which suits the person who likes to graze through the morning rather than open everything at once. They sit well next to the satsuma at the toe of the stocking and take up little room.
A word on provenance for anyone who cares where a gift comes from: the cocoa is sourced through Cocoa Horizons, and the company is a member of Origin Green, with production held to BRC Grade A+ standard. For allergens or ingredient questions, check the detail on each product rather than guessing.
The final few days are for anything local. If you have left it late, a share bag or a boxed selection picked up in person still reads as considered, particularly when the day itself is spent in company.
Three weeks out is the moment to decide what kind of gift you are giving. A boxed collection of chocolates suits a father who likes something to sit with after dinner. A share selection works if the day is spent together and the box is opened at the table. This is also the point to check whether you are posting the gift or handing it over, because postal orders need the longer runway.
The second thing is lead time. Every seasonal peak has a delivery cut-off, and it is always earlier than people expect. The safe approach is to order several days before you think you need to, not the day before. Ordering early does not spoil the gift, because Easter chocolate hamper keeps, so an early arrival is simply the recipient having their gift in hand with room to spare.