In a large glass bowl, place meyer lemon peels and orange peels.
Pour 1 liter of potato vodka over the peels.
Cover bowl with plastic wrap.
Soak for a minimum of 2 days, I did 7.
Strain lemon and orange peels, discarding peels and pouring alcohol into a large saucepan/stockpot.
Add milk, sugar and vanilla.
Bring to a boil over medium heat, stirring continuously.
Watch closely for mixture can boil over quickly.
Adjust heat if necessary.
Boil for 5 minutes.
Let lemon liquer cool completely before pouring into bottles.
Once cooled pour into 500 ml glass canning jars.
Put lids on and store liquer in the freezer.
Keep in freezer until ready to use.
This made 8 jars of liquer for me.