Oatmeal Cake

I don't like coconut but I LOVE this recipe.  This is the most moist cake you will ever eat.

Cake:
1 cup old fashioned oats
1/2 cup butter, softened
1 cup sugar
1 cup packed brown sugar
2 eggs
1 tsp vanilla
1 1/2 cups flour
1 tsp baking soda
1/2 tsp salt
1 tsp ground cinnamon

Preheat oven to 350F.  Grease and flour a 9x13 pan.  To prepare cake, pour 1 1/4 cups boiling water over oats in a small bowl.  Let stand 20 minutes.  Cream butter and sugars with a mixer.  Add oats; mix well.  Add eggs and vanilla; mix well.  Sift together flour, baking soda, salt, and cinnamon.  Add to oat mixture; mix well.  Pour into pan.  bake 30 to 35 minutes, until browned.  Preheat boiler.

Topping:
1/2 cup butter softened
1/4 cup heavy cream
1 cup packed brown sugar
1 cup shredded sweetened coconut

To prepare topping, combine all ingredients in a medium bowl; mix well.  Spread evenly over warm cake.  Place cake under broiler 2 inches from heat source.  Broil until lightly browned, 1 to 1 1/2 minutes.  Cool on a wire rack.