With rain and cooler temperatures here in Utah, I can feel that fall is just around the corner. Fall is my favorite season. I love how the leaves change. I love the cooler sweater temperatures. And I especially love fall baking! Apple and pumpkin are my favorite things to bake with. I would bake year round with them if I could. When I woke up this morning I wanted to bake a treat that had apples in it. I immediately wanted to bake my favorite recipe for crumb bars. These things are amazing. The sweet sour cream center is delicious and is my favorite part! Everything that I love about apple pie is in these bars. And my house smelled amazing like apple pie while they were baking! If you love apple pie, you will these delicious bars!