Temper the Eggs
Slowly pour a bit of the warm milk into the egg mixture, whisking constantly. Gradually add the remaining milk while whisking.
Cook the Custard
Return the mixture to the saucepan. Cook over low heat, stirring constantly until it thickens to a custard-like texture.
Add Lemon and Condensed Milk
Stir in the lemon juice and sweetened condensed milk until fully combined.
