Lower heat & let simmer for 15-20 mins, until mixture has thickened into a syrup & apples have softened.
Keep syrup in bowl or pour into a mason jar & place in fridge to cool completely.
Add apple brown sugar simple syrup & brewed espresso to a heat-proof glass.
Heat Milk to 140-150 degrees. I like to to put milk in jar, shake, & heat in microwave to makes teamed milk & froth.
Pour steamed milk in glass & top with froth.
Top with more simple syrup, caramel & cinnamon