This recipe comes from Deb Perlman of smitten kitchen (if you haven't yet noticed, she is my go-to recipe blog writer. What she does is magic). I've literally copied and pasted the recipe here, with one small change - I added just a bit of lime juice, as I felt the soup was lacking that little bit of brightness. But with that addition, this soup hits all the sweets spots (and salty, earthy, spicy ones too).
Puree soup in batches in blender, or all at once with an immersion blender. In a small bowl, whisk together the miso an a half-cup of the soup. Stir the mixture back into the pot of soup. Taste the soup and season with salt, pepper or additional miso to taste. Add optional lime juice at this point as well.