1 cup (240 ml) whole milk, with additional as needed 1/2 cup (120 ml) sweetened condensed milk 2 medium Hass avocados (approximately 8 ounces/225 g each), halved, pitted, and scooped 10 ounces (285 g) ice (around 10 ice cubes) 1/4 cup (60 ml) strong coffee (such as a double espresso shot) Pinch of kosher or sea salt Chocolate syrup for drizzling (optional) Place whole milk, sweetened condensed milk, avocado, ice, coffee, and salt in a blender. Blend on high speed until smooth