First things first, make the espresso and set aside and allow to cool.

Bring a pot of boiling water (at least 5 cups) and then add boba (tapioca pearls), stir every so often. Boil for 5 minutes. Turn off heat and allow the boba to sit in the pot for about 10 minutes.

While you're bringing the water to a boil, in a smaller separate pot, add sugar (you can use a mix or all light brown sugar) and 1 cup of water. Bring to a boil and allow to boil for 5 minutes, until reduced. Mix every so often.

Using a slotted spoon, add the cooked boba to the sugar water and allow to sit for at least 10 minutes.

Add boba to two glasses.

Add espresso to a measuring cup and add enough water to make 1 1/2 cups. Add sweetened condensed milk and mix thoroughly. Add to blender with ice and blend until smooth.

Pour coffee smoothie over boba and serve with boba straws.