Step 1

For the cinnamon filling:

Step 2

In a bowl, whisk together brown sugar, flour, cinnamon then set aside.

Step 3

For the streusel topping:

Step 4

Add brown sugar, cinnamon, flour, and nutmeg (optional) into a medium bowl. Whisk together, then add the cubed butter (room temperature is preferred).

Step 5

Use clean hands to break the butter into the dry mixture. Once the mixture is well combined into a crumble then you can set the bowl aside.

Step 6

Cake

Step 7

Preheat the oven to 350°F, and parchment line or grease a cake pan of your choice then set aside.

Step 8

Sift the flour, cornstarch, salt, and baking powder into a large bowl, whisk together, then set aside.

Step 9

Beat the butter, and the granulated sugar in a stand mixer or electric hand mixer until light & fluffy, add brown sugar then mix on high. Pour in the vanilla extract, almond extract (optional), and the eggs one at a time while mixing on low. Scrape the sides of the bowl down then mix in sour cream or yogurt until well combined.

Step 10

Add the dry mixture into the wet mixture, then combine until a smooth batter forms..

Step 11

Pour half of the cake mixture into the greased or parchment lined pan then smooth it out. Sprinkling the cinnamon filling on top from the edges to the center. Layer over the cinnamon topping with the leftover cake batter then top with the streusel crumble. Bake for 45-50 minutes, testing doneness with a toothpick.

Step 12

Top cake with vanilla ice cream (optional) and serve.