Marble Sponge Cake (Banh Bong Lan Marble)
1 cup Cake Flour
6 Large Eggs
1/2 cup Sugar
1/3 cup Chocolate
1/4 cup Canola Oil
1/4 cup Orange Juice
1/8 tsp. Salt
Separate 6 Large Eggs. Add 1/8 tsp. Salt into the Egg Whites and beat. Slowly add in 1/2 cup Sugar. Beat until it reaches stiff peaks.
Take the Egg Yolks and add in 1/4 cup Orange Juice. Then add in 1/4 cup Canola Oil. Sift in 1 cup Cake Flour. Mix until well combined.
Fold in the Egg Whites. Scoop about 1/3 of the batter into a separate bowl.
Melt 1/3 cup Chocolate. Place the chocolate bowl in hot water. The chocolate will melt within 1-2 minutes.
Add in the melted chocolate into the 1/3 batter. Fold the chocolate into the batter.
Line a 9 inch baking pan with parchment. First pour about half of the regular batter. Then pour in the chocolate batter and the rest of the regular batter on top.
Using a stick, swirl the batter. This will help make chocolate swirls inside the cake.
Give it a tap to remove bubbles. Place in oven and bake at 350 degrees F. for about 30-35 minutes or until a toothpick comes out clean.
After it finish baking, remove the cake out of the baking pan to avoid shrinking.
Let it rest for a bit and cut a slice to enjoy.