Cod Burgers and Fried Pickles


By Emma
Certified Culinary Professional
Ingredients
Wasabi Mayonnaise
- 80 ml (1/3 cup plus 1 tbsp) mayonnaise
- 1 small green onion finely chopped
- 12 ml (2 1/2 tsp) fresh lime juice
- 3 ml (1/2 tsp) prepared wasabi paste
Fried Cod and Pickles
- 170 g (1 cup plus 2 tbsp) all purpose flour
- 180 ml (3/4 cup) cold sparkling water
- 12 ml (1 tbsp) chopped fresh tarragon
- 400 g (14 oz) cod fillets cut into 4 strips
- 1 large dill pickle cut into 4 thick slices
- Vegetable oil for frying
Garnish
- 4 slightly elongated sandwich buns split in half
- Boston lettuce leaves
About the ingredients
Method
Wasabi Mayonnaise
- Chop green onion very fine. Mix with mayo, lime juice, and wasabi until combined and cool. Keep chilled. Bright acid balances the wasabi's fire. We want it sharp but not overpowering.
Frying Setup
- Heat oil in deep fryer or heavy pot to 175 C (350 F). Use thermometer, no guesswork here. Oil must be hot but not smoking – battles between soggy and burnt happen right now.
Batter and Flour Prep
- Spread out 70 g (1/2 cup plus a spoon) flour on a plate – dry coating step. Mix remaining flour with cold sparkling water and chopped tarragon gently. Mixture must stay lumpy to avoid gluten toughening. Salt, pepper in the batter, taste shows itself after frying.
Coating and Frying Cod
- Dust two pieces of fish lightly with dry flour to help batter stick. Dip into batter, let excess drip off, then slide carefully into hot oil. Listen for sizzle that stays steady, not frantic or muffled. Flip after about 3-4 minutes or when golden and puffed, then crisp all around. Drain on wire rack over baking sheet to keep bottom from steaming.
Frying Pickles
- Same process for pickles: dry flour first, dip in batter, fry 2-3 minutes until bubbly and golden. Watch close, smaller pieces cook faster. Keep warm but watch so they don’t lose crunch.
Assembly
- Toast cut buns. Spread wasabi mayo thickly on cut sides while warm – spreads easier that way. Layer Boston lettuce to provide cool crunch, then add cod pieces and fried pickles alternately. The hot-cold-cream-crisp mix should hit all points.
- Serve immediately. Don’t wait – batter can go soggy fast. If needed, rest fish on rack in warm oven (about 90 C) but only for short time.
Cooking tips
Chef's notes
- 💡 Oil temp crucial here. 175 C steady heat keeps batter crisp without burning fish. Watch for steady sizzle sound not frantic pop or silence. If oil smokes, turn down. Lower temp = oily, limp coating. Use thermometer no guessing.
- 💡 Batter lumps okay. Mix flour, cold sparkling water, tarragon just till combined. Overmix kills bubbles, makes batter heavy and chewier. Fork works better than whisk. Keep cold ingredients cold for better bubbles. Light *not* smooth batter.
- 💡 Dust fish/pickles with dry flour before batter dip. Stops batter from sliding off and slick oil splatter later. Fish strips need gentle handling; batter weight breaks without dry flour base. Pickles cook faster watch carefully. Smaller pieces burn or soak oil.
- 💡 Drain fried pieces on wire rack over tray not paper towels. Paper traps steam under. Results? Soggy bottom and limp coating. Let hot air circulate under fish and pickles keeps crust crisp. Heat holding oven low 90 C works but short time only.
- 💡 Toast buns lightly but keep soft center. Full crunch buns soak oil or mayo quick = mess. Slice hot mayo spreads easier, layer cold Boston lettuce for fresh crunch. Assemble last minute. The temperature contrast key for bite satisfaction; warm fish, cold pickles, mayo, lettuce.
Common questions
Can mayonnaise be replaced?
Vegan mayo works same way. Texture similar. Lime juice swaps well for lemon but less sharp. Wasabi paste potency varies brands taste before mixing.
What if batter is too thick or thin?
Too thick = heavy coating, dull bubbles. Add more cold sparkling water 1 tbsp at a time. Too thin = runs off fish, blisters break. Adjust flour or water slowly not fast. Lumps stay okay.
How to keep fried pickles crispy?
Drain on wire rack, no stacking. Smaller pieces faster cook watch color for golden bubbles. Serve soon after frying. If made ahead reheat briefly in dry pan or low oven, no microwave traps moisture.
Can batter be stored or made ahead?
No, bubbles die quickly. Mix only right before frying. Flour ages affect batter timing. Keep flour fresh. If cold batter sits too long bubbles vanish, coating dull, heavier texture results.