Cut the avocados in half, take out the seed and scoop the flesh into the blender.
Blend all ingredients, except chocolate syrup until smooth. Add more condensed milk to taste.
In the serving glasses, pour chocolate syrup on the side of the glass and let it drip down. Then pour in the avocado blend.
Chocolate Syrup
In a small pot, bring water and sugar to a boil and stir in cocoa, vanilla and salt until all of the solids have dissolved. Simmer until slightly thickened. Strain and cool to room temperature.
Pour into squeeze bottles. Squeeze into milk to make chocolate milk or serve on your favorite ice cream.