Cake
• 1 cup butter, melted
• 1/2 cup sour cream
• 1 cup water, lukewarm
• 2 cups sugar
• 2 eggs
• 1 teaspoon vanilla
• 1 teaspoon baking soda
• 1 teaspoon salt
• 2 cups flour
Cinnamon Swirl Filling
• 1 cup brown sugar
• 1/2 cup butter, melted
• 1 1/t tablespoons cinnamon
• 1 tablespoon flour
Drizzle
• 6 tablespoons butter, melted
• 2 teaspoons vanilla
• 3 tablespoons milk
• 2 cups powdered sugar
Directions
Preheat oven to 375 degrees. Grease a 15x10 pan. Make the cake: whisk butter and sour cream. Add water and whisk well. Mix in sugar. Add eggs, vanilla, baking soda, and salt. Mix well then whisk in flour. Pour into baking pan.
Make the filling: in a small bowl mix brown sugar, butter, cinnamon and flour. Drop tablespoons of filling onto batter. Use a knife to swirl but do not mix. Bake 30 minutes or until golden brown. The cake will not be firm but will pass the toothpick test. Let cool 5-10 minutes before pouring the drizzle over.
Make the drizzle: Whisk all ingredients together.