Confessions of a Liberal Puritan

I had some leftover sour cream to use up last weekend and two more lemons that I'd bought just because, so I made my favorite berry tart recipe . . . without the berries, that is, which I added Thursday night before taking it to work to share yesterday -- the shortbread crust and the lemon sour cream filling alone, once baked, keep really well in the refrigerator for up to a week, I've found).

Since I used strawberries, blueberries, and red raspberries to cover the top of the tart, I called it "red, white & blue berry tart" in honor of Memorial Day (even though the only really "white" part of the tart comes from the whipped topping on the side, but why quibble?). My co-workers loved it, and several of them asked for the recipe, so I thought I'd post it here, as well, just in case anyone else wants to do something tasty and impressive-looking with all the fresh berries available right now:

( Berry Tart Recipe )