Cinnamon Roll Swirl Cake

Ingredients

• Batter
• 3 cups flour
• 1/4 teaspoon salt
• 1 cup sugar
• 4 teaspoons baking powder
• 1 1/2 cups milk
• 2 eggs
• 2 teaspoons vanilla
• 1/2 cup butter, melted
• Topping
• 1 cup butter (soft to the point of almost melted*)
• 1 cup brown sugar
• 2 tablespoons flour
• 2 tablespoons cinnamon
• Glaze
• 2 cups powdered sugar
• 5 tablespoons milk
• 1 teaspoon vanilla