Preheat oven to 400 degrees Fahrenheit.
Add sliced carrots, chopped yellow onion, chopped garlic, chopped bell pepper, and chopped butternut squash to a large bowl, then toss to mix evenly.
Pour mixed vegetables onto a baking tray lined with parchment paper and arrange in an even single layer.
Place baking tray in the oven for about 5 minutes to warm up. In the meantime, melt clarified butter or ghee on the stove on medium-low heat.
After about 5 minutes in the oven, remove pan of vegetables from oven and evenly coat the vegetables with melted clarified butter. Make sure the vegetables are warm - if you add the melted clarified butter to cold vegetables the pieces will not be properly coated because the clarified butter or ghee will solidify.
Arrange the vegetables back in an even single layer on the lined baking tray.
Place baking tray back in oven and roast vegetables for about 45 minutes to 1 hour, stirring halfway between. The vegetables are done roasting when the peppers and onions have some golden brown spots, and the carrots and butternut squash are soft.
Remove vegetables from oven and set aside.
Add chicken broth or vegetable broth, salt, black pepper, and spices to a large pot and bring to a boil.
Reduce to medium heat and add roasted vegetables to pot.
Let simmer on medium heat for 5-10 minutes to let the flavors blend and develop.
Add butter and heavy cream and blend with an immersion blender until smooth.
Add salt to taste, and garnish with extra spices and heavy cream.
Enjoy!