Place the milk, sugar, agave syrup and vanilla in a saucepan over low heat. Bring to boil, incorporates bicarbonate and lower heat to a minimum. Cooking, stirring constantly with a wood spoon, until you can see the bottom of the pot to the movement of the spoon. This can take between 90 minutes and 2 hours.

Remove pan from heat, wrap the nuts and allow the mixture to cool slightly.

Flour your hands and form balls size of a small lemon.