For the Sweet Potato cake you will need;

3 cups cake flour or sifted allpurpose flour
11/4 stick unsalted butter
1 (8oz) pkg Neufchâtel cheese or cream cheese
11/2 cup each of light brown sugar and granulated white sugar
1/4 tsp salt
1/4 tsp ground ginger
1/2 tsp ground nutmeg
1 tsp cinnamon
1 tsp baking soda
2 tsp baking powder
2 tsp vanilla extract
4 lg eggs
21/2 cups sweet potatoes, baked and purée (about 2 medium sweet potatoes)

Grease and flour baking pans. Preheat oven 350 degrees, bake cake roughly 1 hr and 15 mins.
Allow cake to set 10 mins after baking before removing from pan.

Frosting Drizzle;
11/2 cup powdered sugar
1/3 cup whipping cream
2 tsp ground cinnamon
Mix all 3 well. For thinner drizzle add more whipping cream. For thicker drizzle add less whipping cream.