1 can of condensed milk
1 can of cream
1/2 cup of lemon juice (this juice is pure, without water, just squeeze the lemon)
Put the cream (with whey) and the condensed milk in the blender.
Beat a little and then add the lemon juice, little by little.
It will be very consistent, put it in the fridge
When I make it, I double the recipe. It looks wonderful!