Creating the Ooey Gooey Cinnamon Roll Cake is straightforward. Follow these easy steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish with baking spray or butter.
2. Prepare Ingredients: In a mixing bowl, combine the flour, granulated sugar, baking powder, salt, and baking soda. Whisk until well blended.
3. Mix Wet Ingredients: In another bowl, whisk together the milk, melted butter, eggs, and vanilla extract until combined.
4. Combine Mixtures: Gradually add the wet ingredients to the dry ingredients, stirring until smooth and lump-free.
5. Prepare Cinnamon Filling: In a small bowl, mix the brown sugar, ground cinnamon, and chopped nuts (if using).
6. Layer the Filling: Pour half of the cake batter into the prepared baking dish, spreading evenly. Then sprinkle the cinnamon filling mixture over the batter.
7. Top with Remaining Batter: Pour the remaining cake batter over the top of the cinnamon filling. Smooth it out carefully.
8. Bake: Place in the preheated oven and bake for 35-40 minutes or until a toothpick inserted in the center comes out clean.
9. Cool the Cake: Remove from the oven and allow the cake to cool for about 15-20 minutes in the baking dish.
10. Make the Glaze: In a mixing bowl, combine softened cream cheese, powdered sugar, milk, and vanilla extract. Whisk until smooth.
11. Glaze the Cake: Once the cake has cooled slightly, drizzle the cream cheese glaze over the top, allowing it to soak in.