This union is like Deion Sanders' lone, magical season with the San Francisco 49ers. Via press releaseShake Shack announced that they and Dominique Ansel Bakery have joined forces to create the Cronut Hole Concrete, a limited edition treat that will benefit both the Madison Square Park Conservancy and the New York City Patrolmen’s Benevolent Association Widows and Children’s Fund.

The special cronut features Butter Caramel frozen custard courtesy of Shake Shack, three Cinnamon Sugar Cronut Holes and an additional Cronut Hole on top. It will only be available only Sep. 17 at the original Shake Shack location in Madison Square Park (East 23rd St. and Madison Ave.). 

The concretes will be sold for $4.50 and just 1,000 will be available that day, beginning at 10 a.m. Ansel himself will be present to greet fans and serve the desserts. Ansel continues to dominate the pastry game by upping the ante, and now he's doing it for a good cause.