Sweet Potato Gratin Recipe | Food Network

Ingredients

• 1 tablespoon butter, plus 6 tablespoons, chilled and cut into small cubes
• 1 cup freshly squeezed orange juice
• 1/2 cup brown sugar
• 1 teaspoon ground ginger or 1 tablespoon fresh ginger
• Pinch freshly grated nutmeg
• Salt and white pepper
• 1 (12-ounce) can crushed pineapple with juice
• 4 pounds sweet potatoes, peeled and sliced into 1/8-inch pieces