Sweet potatoes are a quintessential fall ingredient. Whether they’re baked into pies, mashed as a side dish, or roasted with rosemary, sweet potatoes are always delicious.
The Test Kitchen combined sweet potatoes with roasted garlic, sage, and gruyere to make a rich slow cooked soup that embodies the flavors of fall.
This fall comfort soup is first cooked in the slow cooker then blended before serving. We used the Hamilton Beach Professional Sous Vide and 6QT Slow Cooker for this recipe but any standard slow cooker would work. Set to slow cook mode and cook the ingredients on HIGH for 4 ½ to 5 hours or LOW for 9 to 10 hours until the sweet potatoes are fork tender.
Next, add the sweet potato mixture to a blender and blend on HIGH until the mixture is velvety and smooth. Return the mixture to the slow cooker crock and add gruyere. Stir in the creamy gruyere until it melts and you are ready to serve.
We wanted to add a little texture to enhance the minced sage in the soup so we fried sage leaves for garnish. Fried sage is crispy and adds a beautiful contrast of color atop this vibrant orange soup. A few fried sage leaves, a mini pile of gruyere, and cracked black pepper finish it off creating a flavor combination that is undeniably autumnal. This would make the perfect addition to any Thanksgiving table or pair with a warm baguette and a glass of red wine on a cool night.