Been doing a “double dip” batter/breading on walleye lately and my daughters love it.
mix up shore lunch beer batter as directed on the box into a dish.
mix a dry batter like shore lunch original (or just use some flour), panko bread crumbs, and season to taste.
dip fillet in beer batter, let excess drip off, then lay in the panko mix. spoon some mix over the top of the fillet, lightly press the mix into the meat, and then gently lay the fillet in the fryer basket. This works best with larger chunks of fish i.e. pike, walleye.
for our panfish, mainly bluegill lately with some crappies and perch mixed in, I just use beer batter with seasoning; the double dip method isn’t getting that nice golden brown color on panfish without the meat getting over cooked. I like the lighter beer batter panfish pieces on fish tacos, which is usually what I make with leftovers.