German Chocolate Cheesecake Swirl Cake

1 . Stage

Preheat oven to 325 degrees F (165 degrees C). Grease a 9x13-inch baking pan.

2 . Stage

Heat water in a small saucepan until simmering. Place chocolate in a bowl set over, but not touching, the water. Stir chocolate frequently until melted, 2 to 3 minutes. Remove from heat and discard water.

3 . Stage

Sift flour, baking soda, and salt together in a bowl.

4 . Stage

Beat 2 cups sugar and shortening in a large bowl with an electric mixer until creamy. Beat in 4 egg yolks until smooth. Stir in milk and vanilla extract. Mix in flour mixture. Fold melted chocolate into the batter.

5 . Stage

Beat egg whites in another bowl until stiff peaks form, about 5 minutes. Fold egg whites into the batter. Pour half of the batter into the prepared baking pan.

6 . Stage

Beat cream cheese and 1 1/2 cup sugar in a large bowl until smooth. Add 4 eggs; beat on low speed just until combined. Pour mixture over batter in the baking dish. Gently spoon remaining batter on top and spread it to the edges of the dish.

7 . Stage

Bake in the preheated oven until a toothpick inserted into the center comes out clean, 75 to 80 minutes. Cool in the pan for 30 minutes, then transfer to a wire rack to cool, about 30 minutes more.