Custom donuts are definitely a thing at Dunkin Donuts. In fact, the company has a whole section dedicated to them on their website. There are a few things to keep in mind before ordering a custom donut, though. First, the donut must be ordered at least an hour in advance.
Second, the price for a custom donut is typically a bit more than a regular donut. Finally, the donut must be ordered with the specific flavors and toppings that the customer desires.