4 medium sweet potatoes (about 8 ounces each), peeled and cut into a large dice
1/4 cup buttermilk, warmed slightly
1/4 cup orange juice
2 teaspoons orange zest
1/2 teaspoon salt
1/4 teaspoon ground nutmeg
1 tablespoon unsalted butter, optional
Recipe Analysis Note: Ingredients without discrete measurements such as "Salt, to taste" or "Ice cream, optional" are omitted from analysis. This is because amounts can be highly variable and difficult to determine.