In a large bowl, combine the egg yolks and whole eggs.
Add sugar and whisk together.
Gently warm the mixture over low heat while continuously whisking.
Add honey, then use a hand mixer to whip the batter until it is pale, thick, and forms ribbons.
Sift in the flour and add the milk.
Gently fold the ingredients together with a spatula until just combined.
Pour the finished batter into a parchment-lined baking pan.
Use a skewer to smooth the top and remove any large air bubbles.
Bake in a preheated oven until golden brown and cooked through.
Remove the castella from the oven and let it cool before slicing.
Nutrition data is AI-estimated and may not be fully accurate.
This recipe was created by analyzing the video with AI. For full details, please refer to the original video.