Blueberry Crumb Cake...how could you go wrong?

  I recently ordered a new cookbook, The America's Test Kitchen Healthy Family Coobook, and I am in love with it! I have never bought a cookbook from The America's Test Kitchen series, but after reading rave reviews and seeing recipes from the cookbook posted on Annies Eats I decided to try it out. I am beyond impressed with this cookbook. I've only had the cookbook a week and already made 4 recipes, all which turned out amazing. I think the cookbook also seems to balance real ingredients with healthy meals, as opposed to using all fat free, sugar free, etc ingredients.
  I decided to make this Blueberry Crumb Cake, well because I love blueberries and I love crumb cake! I also was intrigued by a healthy and also tasty crumb cake recipe. I have found that healthy eating can easily be applied to cooking, but baking is often a different story. Normally, healthy baking recipes I try come out tasting ok, but are just missing that decadent taste baked goods have. Well this crumb tastes like something ordered at that bakery that you would need to spend hours in the gym afterwards to negate. Its moist, the crumb topping has the right amount of crisp and sweetness, and the blueberries add little hints of flavor throughout the crumb cake. So without further ado: