01 -
In a big pot, warm up the butter over medium heat. Stir in the onions and let them soften for 3-4 minutes.
02 -
Throw in the apple and sweet potato chunks. Stir it all up and cook for about 3 minutes.
03 -
Start by pouring in 2 cups of stock to unstick things, then add the rest, along with the cinnamon, nutmeg, and salt. Simmer for 7-10 minutes or until the potatoes soften.
04 -
Once the heat is off, carefully use an immersion blender to make the soup smooth and creamy.
05 -
Tweak the flavors using lemon juice, maple syrup, and more salt if needed. Serve while warm, and drizzle extra syrup if you'd like.