Ingredients:

For the Cake:

1 box strawberry cake mix
1 cup sour cream
4 large eggs
1/2 cup vegetable oil
1/2 cup water
1/2 cup granulated sugar
1 teaspoon vanilla extract
For the Cinnamon Swirl:

1 cup brown sugar, packed
1 tablespoon ground cinnamon
For the Strawberry Glaze:

1 cup powdered sugar
2 tablespoons strawberry jam
1-2 tablespoons milk (as needed for consistency)

Directions:

Preheat Oven:

Preheat your oven to 350°F (175°C). Grease a 9×13 inch baking pan and set aside.
Prepare the Cake Batter:

In a large mixing bowl, combine the strawberry cake mix, sour cream, eggs, vegetable oil, water, granulated sugar, and vanilla extract. Mix until well combined and smooth.
Prepare the Cinnamon Swirl:

In a small bowl, combine the brown sugar and ground cinnamon.
Assemble the Cake:

Pour half of the cake batter into the prepared baking pan and spread it evenly.
Sprinkle the cinnamon-sugar mixture evenly over the batter.
Pour the remaining cake batter over the cinnamon-sugar layer and spread it evenly.
Bake:

Bake in the preheated oven for 35-40 minutes, or until a toothpick inserted into the center comes out clean.
Allow the cake to cool in the pan while you prepare the glaze.
Prepare the Strawberry Glaze:

In a small bowl, combine the powdered sugar and strawberry jam. Mix until smooth.
Add milk, one tablespoon at a time, until the glaze reaches the desired consistency.
Glaze the Cake:

Once the cake has cooled, drizzle the strawberry glaze evenly over the top.
Serve:

Slice and serve. Enjoy the delicious combination of strawberry cake with a cinnamon swirl and sweet strawberry glaze!