Raspberry Rhubarb Crunch

I. Love. Rhubarb. Unfortunately, it is kinda hard to find around here, at least reliably. If it wasn't so early in the year, I'm sure I could count on our awesome farmers markets, but sadly, they start up right after rhubarb season is ended. So every time I go to the grocery store I eye the tiny space that holds the rhubarb for a few weeks... usually they're too big, too tough, too old, too green... But every once in a while I get lucky, and they're just right, slim and snappy and ruby red. And when they are, I bring home a big bag and make this, my favorite rhubarb dessert ever! You could use just rhubarb; or add strawberries, the classic combo, but I love the tartness of rhubarb and like to complement it with tangy raspberries. Either way, it'll be delicious!!