Chocolate Walnut Gelato

Directions

1. 1
   In medium saucepan over medium heat, bring water, sugar and cocoa powder to a boil, whisking constantly.
2. 2
   Reduce heat and simmer until sugar is completely dissolved and cocoa is well blended, about 1 minute.
3. 3
   Remove from heat and stir in chocolate until melted.
4. 4
   Let cool completely.
5. 5
   Stir in orange zest and california walnuts.
6. 6
   Cover and refrigerate until completely cold, about 4 hours.
7. 7
   Spoon chilled chocolate into shallow metal pan; freeze until almost firm, about 3 hours.
8. 8
   Break into chunks; puree in food processor.
9. 9
   Pack into airtight container and freeze until firm, about 1 hour.
10. 10
    Alternatively, transfer chilled mixture to ice cream maker and prepare according to manufacturer's instructions.
11. 11
    Chef's Tip: Use good quality chocolate to achieve the best results; do not use baking chocolate.