Tips for Using Egg Substitutes Test Small Batches: If you’re trying a new substitute, consider testing a small batch first to ensure the texture and flavor meet your expectations. Adjust Baking Time: Egg substitutes can affect the baking time. Check for doneness by inserting a toothpick into the center of the cake—it should come out clean or with a few crumbs. Combine Substitutes: Sometimes, combining two substitutes (e.g., applesauce and yogurt) can yield better results. By choosing the right egg substitute, you can still enjoy a rich, moist, and delicious chocolate truffle cake without compromising on texture or flavor.