To make a 16 ounce (grande) Starbucks drink, you’ll need 2 Nespresso espresso or ristretto capsules. You can also use 1 Vertuo double espresso.
With the Vertuo machine capsules, only use espresso capsules and not the coffee capsules that make 7.77 ounces.
Starbucks uses 2% milk in all their iced lattes but you can use any milk you like including almond milk or oat milk.
Instant coffee can be used if you don't have espresso. Combine 1 tablespoon of instant coffee and ¼ cup hot water to replace the 2 shots of espresso in the recipe.
Homemade vanilla syrup can be made ahead of time. Make a batch and use it to make several iced vanilla lattes.
Instead of homemade, you can get vanilla syrup directly from Starbucks by going to any of their locations and asking if they have any vanilla syrup available for purchase. They’ll sell it to you if they have enough in stock. It should cost around $14.