Preheat the Oven

• Preheat your oven to 350°F (175°C) and grease a 9-inch round cake pan.

Mix the Cake Batter

• In a large mixing bowl, cream together the softened butter and sugar until light and fluffy.
• Add the eggs one at a time, beating well after each addition.
• Mix in the vanilla extract and milk until combined.

Combine Dry Ingredients

• In a separate bowl, whisk together the flour, baking powder, ground cinnamon, and salt.
• Gradually add the dry ingredients to the wet mixture, stirring until just combined.

Prepare the Topping

• In a small bowl, combine the sugar and ground cinnamon for the topping.
• Drizzle the melted butter over the sugar mixture and mix until crumbly.

Assemble the Cake

• Pour half of the cake batter into the prepared cake pan, smoothing it into an even layer.
• Sprinkle half of the cinnamon sugar topping over the batter.
• Pour the remaining batter on top, spreading it evenly.
• Finish by sprinkling the rest of the cinnamon sugar topping over the top layer of batter.

Bake the Cake

• Bake in the preheated oven for 30-35 minutes, or until a toothpick inserted into the center comes out clean.

Cool and Serve

• Allow the cake to cool in the pan for 10 minutes before transferring it to a wire rack to cool completely.
• Slice and serve warm or at room temperature with your favorite beverage.