Rhubarb has a sweet-tart flavor that pairs well with a variety of other flavors. Here are some ideas to get your creative wheels turning: 1. Strawberries: Rhubarb and strawberries are a classic pairing in spring desserts. The whole "if it grows together, it goes together" adage is pretty much written for this stellar combo.  2. Citrus fruits: The bright, zesty flavors of lemon, lime, and orange are a beautiful complement to the tanginess of rhubarb, which is why we add lemon here. 3. Ginger: The warmth and spiciness of ginger add delicious depth to the tartness of the rhubarb. 4. Vanilla: The subtle sweetness and floral notes of vanilla can complement the tartness of rhubarb in a variety of dishes, from pies to yogurt parfaits. I always serve this crisp with a big ol' scoop of vanilla ice cream for just this reason. 5. Oats: Oats are often used in rhubarb crumbles and crisps to add a hearty, nutty flavor and texture to the topping.