LYNNFIELD, MASS. – HP Hood L.L.C. and The Hershey Co. are adding a Special Dark variety to their line of Hershey’s Milk and Milkshakes single-serve refrigerated products.

The dark chocolate flavor joins a line of milkshakes in cookies and cream, strawberry and chocolate varieties and a low-fat chocolate milk.

"We have been pleased with the success of Hershey's Milk and Milkshakes to date and are excited to expand our product offerings," said Lynne Bohan, spokesperson for HP Hood. "Special Dark continues to be a popular flavor, and it was a natural progression of the line to add this flavor.”

The Special Dark flavor will be available at retailers nationwide beginning in March.