Creating The BEST Coffee Cake is easy when you follow these straightforward steps:

1. Preheat the Oven: Preheat your oven to 350°F (175°C). Grease and flour a 9-inch round cake pan.
2. Mix Dry Ingredients: In a bowl, combine the flour, baking powder, salt, and 1 teaspoon of cinnamon. Whisk together and set aside.
3. Cream Butter and Sugar: In a separate large bowl, beat the softened butter and granulated sugar until light and fluffy.
4. Add Eggs and Vanilla: Mix in the eggs, one at a time, along with the vanilla extract until well blended.
5. Combine Wet and Dry Ingredients: Gradually add the flour mixture and milk to the butter mixture, alternating between the two, starting and ending with the flour mixture. Mix until just combined.
6. Prepare the Cinnamon Filling: In a small bowl, combine the brown sugar and the remaining cinnamon to create the filling.
7. Layer the Batter: Pour half of the coffee cake batter into the prepared pan. Sprinkle half of the cinnamon filling over this layer.
8. Add Remaining Batter: Pour the remaining batter on top, then sprinkle the rest of the cinnamon filling on the very top.
9. Bake: Place the cake in the preheated oven and bake for 30-35 minutes, or until a toothpick inserted in the center comes out clean.
10. Cool: Remove the cake from the oven and let it cool in the pan for about 10 minutes. Then, transfer it to a wire rack to cool completely.

These simple steps will lead you to an incredible coffee cake that everyone will enjoy.