Hamburger Cookies

Hello again. It really hasn't been long this time. I've been baking like a mad man because I'm behind in my food course
  So anyway, I asked my mom what recipes she had that would take a long time to make. She pointed me strait to this recipe. This is one of my fathers favourite kinds of cookie.
  These cookies have a mild chocolate flavour with a much richer pudding-like icing squished in between. These cookies work for absolutely anything and are incredibly delicious.

Ingredients:

  Cookies:
4 cups flour
6 cups oatmeal
1 cup cream
4 cups sugar
2 cups butter
8 tbsp cocoa
2 tsp baking powder
2 tsp baking soda
2 tsp vanilla
4 eggs
1 tsp salt

  Icing:
1 1/2 cup milk
1 1/4 cup sugar
4 tbsp butter
4 tbsp cocoa
4 tbsp cornstarch
1 tsp vanilla

Directions:
  For the cookies;
1. Mix the sugar and the butter together in a large bowl.
2. Add the cream, eggs, and vanilla.
3. Now add the flour, cocoa, baking powder, baking soda, and salt and stir until no lumps remain.
4. Place the dough in 1/8 cup sized lumps on baking pans.
5. Bake at 350 until cookies spring back at a slight touch.
6. Let cool completely
  For the icing.
7. Mix all the icing ingredients in a pot and bring to a boil.
8. Spread a heaping tablespoon full of icing onto the bottom of a cooled cookie and squish another cookie down on it.
9. Stick immediately into a airtight container and let sit in the container for at least 3 hours to let the cookies soften.

Little tips from me:
  You will need 2 recipes of icing for every 1 recipe of cookies for maximum enjoyment.
  Best served with a tall glass of milk.
  Leave the cookies in their respective containers for overnight to achieve the softest possible cookies.

  I will be enclosing multiple pictures into this post. The first one will show how many cookies 1 recipe will make. The next pictures will show you about how much icing should go on the cookie. And the last picture is the finished product.