Citrus-Infused Custard Sauce

Directions

1. 1.

   Bring milk and cream to a simmer with citrus zests in a 2-quart heavy saucepan over medium-low heat.

2. 2.

   Whisk together eggs, sugar, and salt in a medium bowl, then whisk in hot cream mixture.

3. 3.

   Return mixture to pan and cook over medium-low heat, stirring constantly with a wooden spoon, until custard is thick enough to coat back of spoon (160° to 165°F on an instant read thermometer), about 2 minutes.

4. 4.

   Immediately remove pan from heat and strain custard through a fine sieve into a bowl, discarding zests.

5. 5.

   Serve warm, or at room temperature, or chill to thicken.