Whisk eggs until they are fluffy and light, approx. 1-2 mins.
Gradually whisk in the sugar; continue until fully blended, about 1 min.
Mix in the cream and the milk; whisk to blend.
Finally, add the cinnamon, vanilla, and the bourbon. Whisk until well combined.
Carefully transfer the mixture to your ice cream maker and prepare as per your ice cream makers instructions.