The sweet potato (Ipomoea batatas) is a dicotyledonous plant that belongs  to the family Convolvulaceae. Its large, starchy, sweet-tasting, tuberous roots  are a root vegetable.  The young leaves and shoots are sometimes eaten as  greens. Of the approximately 50 genera and more than 1,000 species of  Convolvulaceae, I. batatas is the only crop plant of major importance-some  others are used locally, but many are actually poisonous. The sweet potato is  only distantly related to the potato (Solanum tuberosum) and does not belong to  the nightshade family.
The plant is a herbaceous perennial vine, bearing alternate heart-shaped or  palmately lobed leaves and medium-sized sympetalous flowers. The edible tuberous  root is long and tapered, with a smooth skin whose color ranges between yellow,  orange, red, brown, purple, and beige. Its flesh ranges from beige through  white, red, pink, violet, yellow, orange, and purple. Sweet potato varieties  with white or pale yellow flesh are less sweet and moist than those with red,  pink or orange flesh. For more on the sweet potato click 
here. 
 
Bon Appétit | November 2008
by Lora Zarubin
yield:
Makes 12 servings
1 1/2 pounds medium Yukon Gold potatoes
1 1/2 pounds medium red-skinned sweet potatoes (yams)
2 cups heavy whipping cream
1/4 cup (1/2 stick) butter
2 garlic cloves, minced
1 tablespoon minced fresh Italian parsley
1 tablespoon minced fresh rosemary
1 tablespoon minced fresh sage
1 tablespoon minced fresh thyme
1 1/2 teaspoons fine sea salt
3/4 teaspoon freshly ground black pepper
1 1/4 cups (packed) coarsely grated Gruyére cheese (about 5 ounces)
Fill large bowl with cold water. Working with 1 Yukon Gold potato at a  time, peel, then cut into 1/8-inch-thick rounds and place in bowl with water.  Repeat with sweet potatoes. Combine cream, butter, and garlic in medium  saucepan; bring to simmer. Remove from heat. Mix all herbs in small bowl. Mix  sea salt and black pepper in another small bowl.
Butter 13x9x2-inch glass baking dish. Drain potatoes, then pat dry with  kitchen towels. Transfer half of potatoes to prepared baking dish. Use hands to  distribute and spread evenly. Sprinkle with half of salt-pepper mixture, then  half of herb mixture. Sprinkle with half of cheese. Repeat with remaining  potatoes, salt-pepper mixture, herb mixture, and cheese. Pour cream mixture over  gratin, pressing lightly to submerge potato mixture as much as possible. DO  AHEAD: Can be made 6 hours ahead. Cover with plastic wrap and chill. Remove  plastic wrap before baking.
Preheat oven to 400°F. Cover gratin tightly with foil. Bake 30 minutes.  Uncover; bake until top of gratin is golden and most of liquid is absorbed,  about 25 minutes longer. Let stand 10 minutes; serve.
This soup gets its wonderfully creamy texture from purèed carrots and sweet  potatoes rather than cream.
 
 2 teaspoons canola oil
1/2 cup chopped shallots
3 cups (1/2-inch) cubed peeled sweet potato
1 1/2 cups (1/4-inch) sliced peeled carrots
1 tablespoon grated ginger
2 teaspoons curry powder
3 cups fat-free, less-sodium chicken broth
1/2 teaspoon salt
Heat oil in a large saucepan over medium-high heat. Add shallots; saute 3  minutes or until tender. Add potato, carrots, ginger, and curry; cook 2 minutes.  Add broth; bring to a boil. Cover, reduce heat, and simmer 25 minutes or until  vegetables are tender; stir in salt.
Pour half of soup in a food processor; pulse until smooth. Repeat procedure  with remaining soup.
 Squash Varieties
Quail Hill Farm grew 20 varieties of winter squash this year! Please click 
 here to read about the different varieties and  best uses for each one.