This was so good that I made it twice! First time, I made a double recipe and put into a 9 X 13 pan, second time I made the regular recipe and put into an 8 X 8 pan.
This has to be the best summer fruit dessert I've ever made or eaten!
Recipe from Cooks Illustrated: Peach Blueberry Crisp
Simply peaches, blueberries, a little sugar, then the topping has pecans and brown suger (with some butter to hold it together). Totally delicious!