Milk Bar CEO Christina Tosi considers herself a "protein hound" - so when she was presented with an opportunity to collaborate on a nostalgia-inspired menu with Premier Protein, her answer was simple. "We spent so much time in the kitchen ideating around what we want to eat for dessert in a way that [can] really give you that burst of energy and fulfillment," Tosi, 43, told Us Weekly exclusively on July 22, 2025, ahead of the launch of Milk Bar's Premier Protein Power Hour.