The nuggets feature ground white meat chicken covered in a spicy home-style breading. You can find my review of them here.
They're running a deal where you can get 10 Spicy Chicken Nuggets for $1.69 (the promotion is also good for regular Chicken Nuggets).
If you still miss Wendy's Spicy Chicken Nuggets, Burger King's version is fairly similar (and a lot cheaper).
Photo via Burger King.