Add vanilla extract, ground cinnamon, cloves in the milk and boil it.
In a large bowl, add egg yolks, sugar and whisk until fluffy. Add boiled milk slowly into the egg mixture and whisk it.
In a pan, pour the whisked mixture and heat it. Constantly stir the mixture until thick and do not allow to boil. Strain the heated mixture to remove cloves and add ground nutmeg. Let it cool and refrigerate overnight before serving.