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Set in a preheated oven at 350°F, the cake takes about 30 minutes to bake. A unique feature of sponge cakes is that they are tested for doneness by gently pressing the top; if it springs back easily, it's ready. Once out of the oven, the cake is left to cool completely in the pan.
Presentation and Serving
Once cooled, the cake is gently released from its pan, revealing a stunning masterpiece that smells heavenly. The combination of walnuts, brown sugar, and orange zest yields a visually appealing cake, soft and moist thanks to the yogurt. Even better, the cake retains its freshness for days, enhancing its appeal for home bakers.