In this weather, you may want to have a few hot drinks to keep you warm.  Although you will find lots of hot chocolate and coffee in Efteling, Bosrijk has some very nice alcoholic coffees.  They even come with an Efteling chocolate!  They do seem to be quite strong, so maybe have one later in the day 😉

Here is the price list, though it isn’t very cheap, it is definitely worth it: