if you don’t want to splurge on the starbucks version, you can make your own at home. syrup is available at most grocery stores, or you can go to starbucks and purchase the syrup they use. to steam milk, place milk into a jar with a lid and shake vigorously, place into the microwave for a few seconds, and your milk should have frothed - enjoy!
another at home starbucks recipe, if you love it as much as i do, these can be great if you don’t feel like spending 6$ on one, once again, to make steamed milk (if you don’t have the whole steamer thing), just place your milk of choice in a jar and seal, shake it vigorously until it foams a bit, then place it in the microwave for 30 seconds and voila! also, if you don’t have an espresso maker, just brew up some super strong coffee, or regular coffee if you prefer! enjoy!