cinnamon roll cake

From the Recipe Shoebox.

The ingredients:

3 cups flour
1/4 tsp. salt
1 cup sugar
4 tsp. baking powder
1 1/2 cups milk
2 eggs
2 tsp. vanilla
1/2 cup butter, melted

1 cup butter, softened
1 cup brown sugar
2 Tbs. flour
1 Tbs. cinnamon

2 cups powdered sugar
5 Tbs. milk
1 tsp. vanilla

FOR CAKE:  Mix everything together except for the butter. Slowly stir in the melted butter and pour into a greased 9x13 pan.
FOR THE TOPPING:  Mix all the ingredients together until well combined. Drop evenly over the batter and swirl with a knife. Bake at 350 for 28-32 minutes.
FOR THE GLAZE:  Mix all ingredients together until well combined.  Drizzle the glaze over the warm cake.