Step 1

Place the hot water, sugar, cocoa and extract in a blender and blend until smooth. Add in the milk and blend to combine. Set aside to cool completely.

Step 2

Add the ice to the chocolate mixture. Blend until it is frothy and slush-like, adding more ice if needed.

Step 3

Pour a splash of club soda into the bottom of each glass. Fill the glass with the chocolate mixture, leaving about 1 inch of space at the top. Place a small scoop of chocolate gelato on top. Garnish with fresh mint.