There are plenty of reasons to eat a cupcake, but here’s one really good one: to support the victims of the Boston Marathon bombing.

Through May 4, Cupcake on King Street is donating 100 percent of the proceeds from sales of their Boston Cream Cupcake to the One Fund Boston, which was created the day of the bombing by Massachusetts Governor Deval Patrick and Boston Mayor Thomas Menino. The Fund has already raised $20 million, all of which will help those injured by the two blasts.

If you’ve never had a Boston Cream cupcake, there’s no better time to give this classic vanilla-and-chocolate combo a try.