Cinnamon swirl coffee cake?

At starbucks they have this and it is AMAZING~! I just dont know how to make it ! I am pretty good at baking and stuff like that and I just want to know if anyone has a recipe that they have made before and tastes super amaing. I have look on google but I am afraid to make something that might not taset good......
Update: Please please help me make this!
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