Source: Stay Young At Heart
National Heart, Lung, and Blood Institute
Sweet Potato Custard
Preheat oven to 325 °F. Spray a 1-quart casserole with nonstick cooking spray.
In a medium bowl, stir together sweet potato and banana. Add milk, blending well.
Add brown sugar, egg yolks, and salt, and mix thoroughly.
Transfer sweet potato mixture to casserole dish.
Combine raisins, sugar, and cinnamon; sprinkle over the top of the sweet potato mixture.
Bake for 40 to 45 minutes, or until a knife inserted near the center comes out clean.