I have all the ingredients, starbucks coffee, starbucks classic syrup, and half n half. But when I make one, it just don’t taste the same. I’m not sure if I’m brewing the coffee wrong or what. If any one works at starbucks please, please let me know exactly how to do it. I know it can’t be too difficult or complicated, it’s just iced coffee, but the starbucks iced coffee is sooo good! But expensive! Lol thanks in advance for any input on this