Hazelnut Gelato

Directions

1. 1
   Combine milk, cream, and 1/3 cup sugar in a saucepan over medium heat; cook and stir until sugar dissolves, 3 to 5 minutes.
2. 2
   Beat egg yolks and 1/3 cup sugar together in a bowl until mixture is light yellow, about 4 minutes. Stir 1/2 cup milk mixture into egg mixture until smooth; pour into the remaining milk mixture in the saucepan, stirring continuously. Cook, stirring continuously, until mixture thickens enough to coat the back of a metal spoon, 8 to 10 minutes; remove from heat.
3. 3
   Stir chocolate hazelnut spread, espresso powder, and vanilla extract into milk mixture until well combined; pour through a mesh strainer into a bowl. Refrigerate mixture until cold, about 3 hours.
4. 4
   Pour milk mixture into an ice cream maker and freeze according to manufacturer's instructions.