Preheat oven to 350 degrees. Fit the steel knife blade into the work bowl of a food processor. Combine all ingredients in the bowl and process until well mixed, about 10 seconds. Pour custard into 4 custard cups. Place cups in a baking dish, pour boiling water into the dish to a depth of 1/2 inch. Bake 1 hour or until a knife inserted in center comes out clean.
