Note: You can make this with 4 egg whites and omit the whole egg to get the cholesterol down, but the sodium content will go up.
Place all ingredients in a mixing bowl (or blender) and mix with a hand blender until smooth.
Pour into a parchment lined baking dish, pie pan or cake pan. Whatever shape you want it is fine so long as it's lined with parchment.
Bake at 350 F. for 25-30 minutes.
Serve topped with walnuts if you wish.
They are so sweet that there is really no need for syrup. But some fruit would be yummy as a topping!
Please note that the nutrition data given here is a ballpark figure. Exact data is not possible.