Rhubarb crisp is a delicious and comforting dessert made with tart rhubarb and a sweet and crunchy oat topping. The rhubarb becomes soft and tangy when baked, while the topping turns golden brown and crispy. This dessert is perfect for showcasing the bright and unique flavor of rhubarb. Serve it warm with a scoop of vanilla ice cream for a delightful treat.