Sweet Potato Puree

steps

1. Preheat the oven to 375 degrees. Place the sweet potatoes in a baking dish and bake for until completely tender, about 1 hour and 15 minutes. Let cool completely. 
2. Cut the sweet potatoes in half lengthwise, scoop out the flesh, and roughly chop it (discard the skins). Combine the flesh, vegetable stock, and milk in a medium saucepan and bring to a simmer over medium heat, stirring occasionally to prevent scorching. Simmer, stirring occasionally, until the liquid has reduced by about half, about 15 minutes.
3. Transfer mixture to a blender, add the salt and white pepper, and blend on high until completely smooth, about 2 minutes. Blend in the orange juice and serve. Or, transfer to a container, cool to room temperature, cover, and refrigerate for up to 2 days.