01 - Combine milk and cream in a medium saucepan. Heat over medium heat until steaming but not boiling.
02 - Add hojicha tea to the hot dairy mixture. Remove from heat and let steep for 10 minutes to infuse the roasted tea flavor.
03 - Pour mixture through a fine sieve, pressing on tea leaves to extract maximum flavor. Discard tea leaves and return the infused liquid to the saucepan.
04 - Whisk egg yolks, sugar, and salt in a separate bowl until pale and creamy in texture.
05 - Gradually pour the warm hojicha mixture into the yolks while whisking constantly to prevent curdling.
06 - Return mixture to the saucepan. Cook over low heat, stirring constantly with a wooden spoon until thickened and coating the back of the spoon, about 6 to 8 minutes. Do not allow to boil.
07 - Pour custard through a fine sieve into a clean bowl. Let cool to room temperature, then cover and refrigerate for at least 3 hours until thoroughly chilled.
08 - Churn the chilled custard in an ice cream maker according to the manufacturer's instructions until it reaches a soft-serve consistency.
09 - Transfer churned ice cream to an airtight container. Cover and freeze for at least 1 hour before serving to allow it to firm up.