I’ve had my fair share of coffee cakes. And I am 100% sure that this is the best coffee cake I’ve ever made or ever eaten. So you know this has got to be serious. Just imagine this for a second: an equal ratio of fluffy, moist lemony cake with bursting blueberries, lemony cream cheese filling, and buttery, crunchy, streusel coated with a tart lemon glaze. I mean, it really can’t get much better than that.