This recipe from Smitten Kitchen was really good. Even though I cut the butter in the dough recipe by half (the full 1/2 cup seemed a bit too decadent), with the sour cream it turned out wonderfully. I also skipped freezing the flour and it was probably only in the fridge for 30 minutes. The only problem with the recipe is that our family of 4 finished it all off with no leftovers for lunch–make 2 next time!