Wash the yams and bake for 1 to 1 1/2 hours, until they are soft.
from the oven, then peel, cut into chunks and puree in a blender. There should be
1 1/2 cups of puree. Set aside to cool.
While the yams are baking, prepare the caramel. In a small, heavy saucepan, bring
the sugar and 1/4 cup of the water to a boil over high heat, washing down any crystals
clinging to the sides of the pan with a pastry brush dipped in cold water. Watch
the syrup carefully, not stirring, and when it turns golden brown and is bubbling
furiously, pour it into the center of an aluminum or glass 9-inch flan pan or souffle
dish, swirling the syrup around the bottom and partially up the sides of the pan.
Pour any remaining syrup that does not adhere back into the pot, add the remaining
1/2 cup of water, and bring the syrup back to a boil to serve with the flan. Set
Beat the eggs and yolks in a bowl until light and fluffy. Add remaining ingredients,
along with the cooled yam puree, and beat well. Pour mixture into the prepared pan,
place it in a roasting pan, and pour boiling water into the roasting pan so it comes
halfway up the sides of the flan. Bake for one hour or until firm throughout. Do
Remove from the water bath, cool to room temperature, and then chill.
run a knife around the edge of the flan, place a serving plate over the flan, and
invert, rapping it on the counter to loosen the flan. Pour off any juice and serve
with the caramel sauce.
The flan can be made up to 4 days in advance and kept in the refrigerator, tightly
covered with plastic wrap.