Sour Cream Chocolate Cake

A chocolate cake mix gets a serious upgrade with sour cream stirred into the batter. The extra fat and acidity from the sour cream make the crumb denser, moister, and more tender than the box recipe alone, with a fudgier texture that lasts for days.

But the real trick is the topping. A mixture of sour cream and brown sugar spread over the hot cake and broiled for a few minutes creates a bubbly, caramelized crust. The brown sugar melts and browns under the broiler while the sour cream layer stays creamy underneath. It’s not frosting and it’s not a glaze. It’s something in between.

Kitchen Tips

• Beat at medium speed for the full 1-2 minutes after scraping. This develops enough structure for the sour cream-heavy batter to rise properly.
• Spread the topping on while the cake is still hot from the oven. It needs heat underneath to help it set.
• Watch the broiler constantly during those 3-5 minutes. The brown sugar goes from bubbly to burnt in seconds.
• Cool completely before cutting. The broiled topping needs time to firm up or it smears when sliced.

Variations

• Add a teaspoon of instant espresso to the cake batter to deepen the chocolate flavor.
• Fold chocolate chips into the batter for pockets of melted chocolate.
• Top with toasted coconut flakes before broiling for a German chocolate cake twist.