Cod fillets are dipped in a batter made with beer, then deep fried and served with chips and mushy peas.
Fish and chips is one of my all time favorite meals from my childhood days in Ireland. Mushy peas compliment this meal perfectly.
This light and crispy beer batter is perfect for deep frying cod or haddock, producing succulent fish any traditional fish and chip shop would be proud of.

Table of Contents
Battered Fish in Ireland
Battered fish is a food staple in Ireland and cooked to perfection by many chippers (Irish fish and chip shops). Some use regular batter for deep frying cod, but a little beer in the batter adds a lovely malty flavor.
Traditionally it is served sprinkled with salt and malt vinegar.
Favorite sides for beer battered fish are chips or french fries, and mushy peas.
This is a taste of Ireland for sure.

Ingredients for Battered Fish
Here you’ll find a quick list of what you’ll need for this recipe.
Check out the printable recipe at the bottom of this post for US and Metric equivalent versions of the recipe. There you can choose the measurement system that works best for you.
For The Fish
- cod or haddock (If using frozen fish thaw completely per package directions)
- all-purpose flour to dredge fish
- salt to season dredging flour
- pepper to season dredging flour
For The Batter
- all-purpose flour
- cake flour
- onion powder
- salt
- baking powder
- egg
- beer
- canola oil for deep frying the fish
Directions for Beer Battered Fish
Here you’ll find step-by-step photographic instructions to help you recreate this recipe successfully. There are plenty of tips included along the way.

Whisk the egg in a bowl with a fairly flat bottom. This makes it easier to batter larger pieces of fish.
Sift in the two types of flour, powder and salt. I like to add a little cake flour rather than using only all-purpose flour.
I think it makes the batter a little lighter and crispier.

Add the onion powder and sift all the dry ingredients into the bowl with the egg.

Mix the egg and flour together. It will get very sticky and clumpy. Gradually add the beer whisking all the time.
I like to use the Irish Harp larger, but any beer will do.
Don't pour all of the beer in at once. It's important to pour gradually whisking away to produce a thick batter.
Sometimes I use a full bottle and sometimes I only need about 10 ounces. I think it depends on the weather!!!

The final batter should be nice and thick with the consistency of heavy whipping cream.
Add the canola oil to a dutch oven or a deep frying pan. Fill to a little less than the half-way point. You can use a deep fat fryer but I prefer the results I get when I fry my fish the old fashioned way. I think I can keep the oil hotter for longer on my stove top, which helps to keep the batter crispy.
The oil needs to be 375 degrees Fahrenheit to cook fish. It takes some time to bring the oil to this temperature.

In a flat bottomed pie dish season the additional flour with salt and pepper.
When the oil is ready, dredge the fish one piece at a time in the flour mixture.

Then transfer into the beer batter, coating the fish completely. Lift it out of the batter and hold it over the bowl to let the excess drip off.

Carefully lower the fish into the hot oil, holding it by the tail piece with a tongs. Release it gently without letting your fingers near the oil. The oil sizzles and bubbles up like crazy - the reason why the pan must be less than half full.
Take extra precautions when frying with a big pan of oil. Keep it on the back burner and well away from little ones. I issue my kids an off limits order for the kitchen whenever I am deep frying.
Fry two or three pieces of fish together at a time. Avoid adding too many pieces since this lowers the oil temperature and produces soggier batter. Fry for about 5 minutes until the coating is golden brown.
Most recipes tell you to turn the fish frequently, but I always find my fish floats whatever way it wants. It has a mind of its own, and no matter how often I turn a piece, it just somersaults back into the position it likes.

When brown and crispy remove the fish from the oil and transfer to a plate covered in a paper towel to absorb any excess grease.
Let it rest for a few minutes or keep it warm in the oven while you cook some chips.

If you keep it warm in the oven for too long the fish can get soggy. I never cook fish and chips for more than four people at a time, because I find that in the time it takes to cook everything for a large group, either my chips or my fish have lost a little of their crispy texture.

In England and Scotland the traditional side dishes for fish and chips is mushy peas and chips or french fries.

And of course, a sprinkling of malt vinegar and salt is a must.
No ketchup in this house, only plenty of vinegar.

And of course a nice glass of cool beer is just perfect!
Recipe Card for Beer Battered Fish
Here is the printable recipe card.
Beer Battered Fish
Ingredients
For The Fish
- 1½ pound cod or haddock (If using frozen fish thaw completely per package directions)
- ¾ cups all-purpose flour to dredge fish
- ¼ teaspoon salt to season dredging flour
- ¼ teaspoon pepper to season dredging flour
For The Batter
- ½ cup all-purpose flour
- ½ cup cake flour
- ¼ teaspoon onion powder
- ¼ teaspoon salt
- 2 teaspoons baking powder
- 1 large egg
- 10 fl ounces beer
- 12 cup canola oil for deep frying the fish
Instructions
Preparing the Batter
- Make the batter by whisking the egg in a flat bottomed bowl.
- Sift in the two types of flours, baking powder, salt and onion powder.
- Whisk in the beer to form a thick batter with the consistency of heavy whipping cream. Hold back on some of the beer if the batter if necessary.
Heating the Oil
- Fill a dutch oven a little less than half full with canola oil. Heat to 375 degrees F - use a candy or oil thermometer to check temperature.
Coating the Fish
- Add the dredging flour to a plate or flat pie dish and season with salt and pepper. When the oil is nearly heated, coat each piece of fish in flour.
- Next dip the flour-coated fish in the beer batter one piece at a time. Hold over the batter bowl to allow the excess to drain off.
Frying the Fish
- Transfer carefully to the hot oil or deep fat fryer, holding the fish by the end piece with a tongs. Lower gently into the oil.
- Fry the fish in the oil for 5 minutes until the batter has turned a golden brown color. Cook 2 to 3 pieces together at the same time depending upon the size of your dutch oven or deep frying pan. Do not crowd the pan with too many pieces of fish.
- Carefully remove the fish to a plate covered with a paper towel and let rest for a few minutes before serving.
- Serve with chips or french fries. Drizzle with malt vinegar and dust with salt if desired.
Nutrition Information is estimated based on the ingredients and cooking instructions as described in each recipe and is intended to be used for informational purposes only. Please note that nutrition details may vary based on methods of preparation, origin and freshness of ingredients used.
Wishing you all happy fish fries this Friday and any day of the week you get a hankering for good old fish and chips.
Thanks for following my recipes and ramblings.

Slán agus beannacht,
(Goodbye and blessings)
Mairéad -Irish American Mom
Pronunciation - slawn ah-gus ban-ock-th
Mairéad - rhymes with parade
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Kay G.
When we visit England, my son and I only want to eat Fish & Chips! (Well, the bread and the cheese too!)
My husband is on a gluten free diet, so he can't have this with us ...but one of the chippies makes fish for him without the batter and he's able to have the great chips with his fish!
Irish American Mom
Kay - I wonder what the batter would be like using gluten free flour. I might try that someday. You are lucky to have found a chippie to make fish without the batter. I love chips - they are just a little fatter than a french fry and not quite so crispy. I will be sharing my technique for making chips next.
Grammy
Your fish looks divine! I think this may be dinner tonight 🙂
Irish American Mom
This fish is great - a special treat in our house that brings back memories of Irish fish and chips for me and my husband.
kody
I am Irish as well and i love your beer batter recipe but i have a question do you have a vegi recipe to sub for chips or fries as in using asparagus or bell peppers fish i would use is pollock (cod) thank you so much for taking the time to do this ....OH if you couldnt use harps what would you sub for your recipe?
Irish American Mom
Hi Kody - I've never deep fried vegetables using this beer batter. I might try some next time I make it. I usually use a lighter tempura batter for vegetables. Sorry I haven't got that recipe prepared for my blog, but you should find a good recipe online for tempura batter.
If you cannot find Harp lager, then you could try Guinness Blonde or a good Belgian beer would work nicely too.
Thanks so much for trying this recipe and for taking the time to leave this comment with your seal of approval.
Best wishes,
Mairéad
Maureen Widmer
I have used All-Purpose Gluten Free flour (Bob's Red Mill) with astounding success when frying fish and other foods. I add a healthy pinch of corn starch, garlic powder, garlic salt (to taste, or omit) as well as a pinch of baking powder. Slowly mix in a bottle of flat GF beer until desired texture is achieved. NOTE: This batter will thicken a bit as it sits, so save a couple ounces of beer, or thin with a little water.
I do not find it necessary to dredge the fish in flour first, as long as it is patted dry. The fish will drop to the bottom of the frying vessel, at first. Don't overcrowd, as the oil temperature will drop dramatically. Once the fish floats it is done. A little extra time will result in a golden brown crust. The bonus of this process is that the batter STAYS CRISPY!!! I have held fish fry here in MN for 10 people or more, and even when the fish has cooled inside, the outside is still crunchy!
P.S. Onion rings, deep fried mushrooms and cauliflower are all excellent using this same method!
Irish American Mom
Dear Maureen - Thank you so much for your wonderful tips for making crispy battered fish. It's always lovely to hear from readers who share their tried and true techniques for kitchen success. Gluten free recipes are sought after by many of my readers, so I'm glad to hear you've had great results with gluten free flour.
Best wishes,
Mairéad
Anisa
I’ve made this recipe several times now, one of my Husband’s favorite meals. Now I’m known for making the best beer battered fish around- thank you! I will have to try your smashed peas!
Irish American Mom
That's wonderful to hear, Anisa. I'm so glad you like this recipe and thank you for taking the time to stop by and let us know. I really appreciate you rating this recipe.
All the best,
Mairéad
Misty
Would it be possible to freeze these fillets after cooking for reheating later?
I have 3 jobs so it's hard to find time to cook anything so I usually dedicate a day off to preparing elements of meals and freezing them to be re-heated over the next 3-4 weeks in my toaster oven while I cook whatever side dish(s) I'm going to have with it.
Would you know how this would re-heated if I completely cooled, then frozen individually before transferring to a freezer bag?
Irish American Mom
Hi Misty - I personally have never frozen these cooked fish fillets. However, here are some tips from what I do know about freezing techniques. It is probably best to flash freeze the cooled cooked fish pieces. This involves freezing the individual pieces of fish separately, spread out on a baking sheet or tray. Once frozen pack them in airtight containers or freezer bags. This will prevent individual pieces of fish from fusing together while freezing. I would reheat them in the toaster oven after thawing, preferably on a rack so that the bottom does not go soggy. I can't guarantee success, but I hope this works.
All the best, and thanks for checking out this recipe.
Mairéad
Helen
I’ll be making this again - crispy, delicious fish.
Irish American Mom
Hi Helen - Thanks for checking out this recipe and rating it. Glad you like this crispy beer battered fish.
All the best,
Mairéad
Jeff
Mairéad,
I was reading this delicious post and I wondered if you could use Guinness?
Irish American Mom
Hi Jeff - I've never made it with Guinness but I would say it would turn out fine. The Guinness will be more bitter than regular beer so you may want to add a 1/2 teaspoon of brown sugar to the batter to compensate. Thanks for checking out this receip.
All the best,
Mairéad
Shaun
I wouldn't use Guinness, too heavy and creamy, for a light puffy batter lager is favourite, I use Heineken or Carlsberg.
Irish American Mom
Hi Shaun - Lager is definitely best for this recipe. It does create a much lighter batter, than when it is made with Guinness.
Thanks for checking out this recipe.
All the best,
Mairéad
Dee
Love this for flounder and have even used it to fry chicken
Irish American Mom
Hi Dee - this recipe is great for any white fish. Great to hear it was a success for you, even using chicken. Thanks for stopping by to rate this recipe.
All the best,
Mairéad