Here is a batter recipe that we used last time, and it was really good!
Portion: 16x3 (you can make 3 batches of 16 takoyaki)
Batter: Eggs: 2 Cake Flour: 1.5 cups Dashi (Japanese soup stock): 4 cups Japanese yam powder (or ground Japanese yam): 1 package or 1/4 cup of ground yam Salt: 1.5 tea spoon
You can make the Dashi broth from dashi powder or bonito flakes. Make sure the dashi is cool, then mix with the rest of the ingredients. Then you can strain it so it is smooth. You can omit the Yam powder, but the Yam makes it creamier.