Today where going to find out how to make a German Delicacy, and also known as Helmuth's Favorite Food 

His mother, Emma, saved up her food ration cards to get it.

 And I can see why. :)

Ingredients:

• 1/4 lb butter
• 1/3 cup sugar
• 1/2 teaspoon vanilla
• 1 egg
• 1 tablespoon sour cream
• 1 pinch salt (only if you use unsalted butter)
• 1 teaspoon lemon
• 1 3/4 cups flour
• 1 teaspoon baking powder
• 2 cups plums, pitted and sliced into thin wedges

For the topping

• 6 tablespoons butter
• 3/4 cup flour
• 1/3 cup sugar
• 1/2 teaspoon cinnamon

Directions:

1. 1
   In a large bowl, cream the butter, add the sugar, vanilla, egg, lemon peel, sour cream and salt (if desired).
2. 2
   Mix the flour and baking powder and add that into the mixture.
3. 3
   Grease the base of a round baking pan and spread the dough over the pan.
4. 4
   Liberally spread plums over the dough.
5. 5
   To make the optional topping, cream the butter, add flour, sugar and cinnamon.
6. 6
   Sprinkle over the plums and bake for 30-45 minutes in the middle rack at 375 F.
7. 7
   Be careful not to let the bottom burn!
8. 8
   Serve with lots of freshly-made whipped cream.
9. 9
   If you like, you may also sprinkle rum or cinnamon over the fruit before baking.