Finely grate your rind of the lemons and orange
Squeeze juice from your lemons and orange to measure 1/2 cup of juice
Put into a 4 cup or larger microwavable bowl
Stir in rind, butter, and sugar
Microwave on high for 11/2 to 2 minutes until butter is melted and hot
Beat eggs in another bowl until fully combined
GRADUALLY add the hot mixture to the eggs, stirring constantly
Return the mixture to the microwavable bowl
Microwave on 50% for 30 seconds at a time until thickened, stirring in between each 30 seconds
(Do not let boil, the mixture will thicken even more as it cools)
Serve with crepes or cookies
Store in an airtight container in the refrigerator for up to 2 weeks or longer in the freezer