Sandra Lee makes a favorite cake into treats. And with half the work done for you (thanks, cake mix), the recipe's easy enough to double for a party.
Prep Time 15 minutes mins
Cook Time 10 minutes mins
Total Time 55 minutes mins
Ensure all dairy ingredients (butter, cream cheese, eggs) are at true room temperature for optimal emulsification and a smooth, fluffy cream cheese filling. When mixing the whoopie pie batter, do not overmix; incorporate ingredients just until combined to maintain a tender crumb. Chilling the batter is crucial for preventing excessive spreading during baking and ensuring distinct, uniform cookie shapes. For a deeper flavor, lightly toast the walnuts before chopping. To enhance the filling, consider adding a touch of orange zest or a pinch of cinnamon for a more complex spice profile. Always cool the cookies completely on a wire rack before filling to prevent the frosting from melting and to maintain structural integrity.