Trader Joe's Mini Vanilla Sheet Cake is a fan favorite, but it's frankly a bit plain. Integrate some juicy, jammy flavor by adding one ingredient to the top.

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¼ cup curd, 2 tbsp vegetable oil, 4 tbsp buttermilk, 4 tbsp sugar, 1/4 cup refined flour, 2 tbsp cocoa powder, 1 pinch baking soda, ¼ tsp baking powder, ½ cup whipping cream and 2 tbsp powdered sugar.