Ingredients

6 ounces semisweet chocolate, finely chopped 

2 cups whole milk 

1/4 cup Dutch-process cocoa powder 

1/4 cup sugar 

Preparation

In a small saucepan, whisk together chocolate, milk, cocoa and sugar over medium heat until chocolate is melted and sugar is dissolved, about 5 minutes. Let cool to room temperature.

Use a liquid measure or small pitcher to pour chocolate mixture evenly among two ice cube trays. Freeze, uncovered, at least 4 hours and up to 3 days. Transfer to zip-top bags and store up to 3 weeks.