Created by ImPat on October 31, 2014
Step 1: Preheat oven to 165C fan forced (185C normal).
Step 2: Mix together the sweet potato, polenta, brown sugar, salt and ground ginger in a large bowl.
Step 3: Whisk the egg and egg yolks together with the vanilla and cream and then add this to the sweet potato mixture and mix well.
Step 4: Transfer the mixture to a lightly oiled gratin (casserole/oven proof dish) and smooth the top and cook in the oven for about 30 to 35 minutes until golden and set.
Step 5: Sprinkle with a little caster sugar and serve in individual bowls with a dollop of cream or ice cream on the side.