Making condensed milk from scratch for our sugar free desserts requires dedication and some time on our hands but doesn't require any particular skill.
Stir it until it starts to boil. Reduce heat to low.
Pour in the agave syrup
Put in vanilla extract too.
Now leave saucepan with the milk in low heat for about an hour, stir occasionally. The purpose is to reduce the amount of the milk in half.
When it’s reduced and the amount is about 2 cup / 500ml, turn off the heat and leave in to cool a little bit before blend it together with the butter.
Store it in the fridge. Use it up within a week.