Cinnabon Cinnamon Roll Cake

A cinnabon cinnamon roll turned into a cake!?  Ok you know that it HAS to be good!  I chose to make this tonight because I had all of the ingredients on hand.  It was really simple and oh man it was delicious!  It was warm and gooey and the glaze on top was so good!  I served it right out of the oven and it was gone in 5 minutes.  
*This cake is meant to be gooey like a cinnamon roll.  I suggest if you want it less gooey, cut the brown sugar, butter,cinnamon mixture to drop on top of cake in half.

Rating: 5 stars  Difficulty of Recipe: 2 star
How I changed the recipe:  Kept it the same
Things I would change next time:  I might try Cream Cheese Frosting on this!! YUM
Will I make it again?  My hubby already wants more!
Recipe from: Six Sisters

Ingredients:

3 cups flour
1/4 tsp salt
1 cup sugar
4 tsp baking powder
1 1/2 cup milk
2 eggs
2 tsp vanilla
4 T butter, melted
2 sticks (1 cup) butter, softened
1 cup brown sugar
1 T cinnamon
2/3 cups nuts (optional)

Glaze:
2 cups powdered sugar
5 T milk
1 tsp vanilla

With an electric mixer or stand-up mixer, mix flour, sugar, salt, baking powder, milk, eggs, and vanilla. Once combined well, slowly stir in 4 T melted butter. Pour batter into a greased 9x13" baking pan.
In a large bowl, mix the 2 sticks of softened butter, brown sugar, cinnamon, and nuts until well combined. Drop evenly over cake batter by the tablespoon and use a knife to marble/swirl through the cake. 

Bake at 350 degrees for 25-30 minutes or until toothpick comes out nearly clean from center. Place powdered sugar, milk, and vanilla in a large bowl. Whisk until smooth. Drizzle over warm cake. Serve warm or at room temperature.