Combine orange zest and sugar in the bowl of a food processor and process for about 2 minutes. Place the “orange sugar” in a large saucepan with milk and bring to a simmer over medium low heat. Add chocolate and orange liqueur, whisking until smooth. Strain the chocolate through a sieve and serve into mugs, topping with a slice of orange.

As seen in Joy of Kosher with Jamie Geller Magazine (Winter 2011) - Subscribe Now.