Ingredients
- 3/4 cup sugar
- 1/2 cup unsweetened cocoa powder
- 1/2 cup water
- 1 cup milk
- 1 tsp vanilla extract
- 21/4 cup seltzer
Directions
Combine the sugar, cocoa powder, and water in a small saucepan, and whisk together until smooth. Bring to a boil, then remove from the heat and stir in the milk and vanilla. Let cool to room temperature, then chill.
This syrup mixture will keep in the refrigerator for up to 2 days.
To make one serving, combine 1/2 cup of ice cold chocolate syrup and 1/4 cup of crushed ice in a tall glass. Add 3/4 cup of seltzer, aiming it toward the side of the glass to encourage a large white head of foam to rise to the top.
Recipe from Homemade Soda by Andrew Schloss/Storey Publishing, 2011.
