Hokkaido 3.6 Milk Cake is a pastry shop in Mong Kok, Soy St that sells cakes and egg tarts made with Hokkaido milk. Its milk caramel egg tarts and chocolate tarts have soft, melting fillings and cookie-like tart shells. The tarts come in several flavors, including matcha mochi, rose earl grey, and tiramisu, and are made without heavy sweetness. The cheese tart is large for a single piece.