Start by preheating your oven to 350°F (175°C). This ensures that your cake bakes evenly and has the perfect golden brown finish.

Grease a 9-inch round cake pan with butter or line it with parchment paper. This will prevent the cake from sticking and make it easy to remove once it’s baked.

In a medium-sized bowl, whisk together flour, baking powder, baking soda, cinnamon, and salt. Set this bowl aside. The cinnamon is what gives this cake its classic coffee cake flavor, so don’t skip it!

In a large mixing bowl, beat together softened butter and granulated sugar until it’s light and fluffy. This usually takes about 2-3 minutes with an electric mixer. This step helps create that soft, moist texture we all love.

Beat in the eggs one at a time, ensuring each is fully incorporated before adding the next. Stir in the vanilla extract for a warm, aromatic flavor.

Gradually add the dry ingredient mixture into the wet ingredients, alternating with the sour cream. Start and finish with the dry ingredients. Mix just until combined to avoid overmixing, which could make the cake dense.

Pour the batter into your prepared cake pan, smoothing the top with a spatula. Bake in your preheated oven for 25-30 minutes or until a toothpick inserted in the center comes out clean.

Once baked, let the cake cool in the pan for about 10 minutes before transferring it to a wire rack to cool completely. If you want to take it to the next level, drizzle it with a simple glaze or sprinkle with brown sugar for an extra touch of sweetness.