A food product includes a shell containing at least one ingredient. The shell includes first and second shell portions. The shell is configured to be dissolved or melted into a heated liquid to release the at least one ingredient in order to form a heated beverage. The at least one ingredient includes multiple marshmallows configured to float on a top surface of the heated beverage. The shell includes at least one decorative feature disposed on an exterior surface of the shell.

A puzzle of chocolate-based material puzzle pieces is formed by providing a transfer sheet having a design of food-grade material on a first side of the transfer sheet and providing a puzzle piece template having passages shaped as pieces of the puzzle. The puzzle piece template is arranged on top of the first side of the transfer sheet. The passages of the puzzle piece template are filled with a chocolate-based material. After crystallization, the chocolate-based material in the passages of the puzzle piece template form the chocolate-based material puzzle pieces of the puzzle. The chocolate-based material puzzle pieces are removed from the template.