In Playmates ch. 29 there is a very brief discussion about breakfast:

"Susan and I had sweet potato pancakes and two cups of coffee each."

No clue as to whether this was meant to resemble a pancake or a latke, so I have included recipes for both versions.  Serve with sour cream and applesauce.

Sweet Potato Pancakes

2 TB butter -- melted 
1/2 cup cooked sweet potatoes 
   - peeled and chopped 
   - or roughly mashed 
1 egg 
1/3 cups all-purpose flour 
1/2 tsp baking powder 
1/4 cup milk (or more) 
Sour cream 

Place sweet potatoes a mixing bowl, add egg and mix well. Stir in the flour and add the baking powder. Add up to 1/3 cup of milk, stirring. Stir in 1 tablespoon butter. The mixture should have the consistency of thick, lumpy sauce and be able to coat a wooden spoon. Place a non-stick or heavy iron skillet over medium heat on top of the stove and add 1/2 teaspoon butter. Spoon 3 tablespoons of batter per pancake into the skillet and cook until bubbles rise to the surface of the pancakes and break, 
about 1 to 2 minutes. Using a spatula, flip the pancakes and cook another 2 minutes. 
Repeat the procedure until all the pancakes are cooked. After the first batch is cooked, add as little butter as possible without allowing the pancakes to stick to the bottom of the pan.  Makes 12 small pancakes.

Sweet Potato Pancakes - Latke style

4 cups grated sweet potatoes (approximately one large sweet potato)* 
1/2 cup grated onion 
3-4 tablespoons lemon juice 
1 teaspoon salt 
Black pepper to taste 
4 eggs 
1/3 cup flour 
Vegetable oil 

Beat the eggs in a medium sized bowl. Add the potatoes, onion, lemon juice, salt, pepper, and flour; mix well. 

Heat a small amount of oil in a skillet (preferably non-stick) until it is very hot. Use a spoon to form thin pancakes, pressing the batter down in the pan. Give the batter an occasional stir to keep the ingredients mixed. Fry on both sides until brown. 

*You don't need to peel the potatoes, though you should scrub them well.