I can't vouch for the authenticity to what Starbucks serves, but these are pleasant. I think they are better without the orange oil - it's almost over the top with orangeness, like cheap air freshener. I back off the sugar a little, to 3/4 cup. When I have fresh oranges for juice, I throw the pulp in, too. It is some hard work to cut in the butter - as it gets smaller, it gets hidden by the oatmeal, and you are working with a good bit of dry ingredients.