This is a wonderful recipe to use up your blueberries. I have Thrive blueberries and I wanted to see how they would turn out in this classic that my mom used to bake. I have been making it from a church sort of recipe book for a long time and I changed the amount of butter in the crumb topping to suit me. In the end it is sort of a coffee cake meets blueberry muffin. I hope you like it! It tasted great and the Thrive blueberries are excellent in it.