Katsu Sandwich Recipe with Sardines

Sardine katsu sandwich

  • serves 4
  • A little effort

Check out this twist on the Japanese katsu sandwich, packed with breaded sardines. This moreish recipe comes from chef Chase Lovecky of Two lights in East London


Try this sardine katsu sandwich, then check out our grilled sardines, sardine spaghetti, sardines on toast and more sardine recipes.



  • plain flour 100g, well seasoned
  • egg 1, beaten with 50ml water
  • panko breadcrumbs 100g, lightly crushed
  • fresh sardines 4, cleaned and butterflied, tails left on (ask the fishmonger to do this for you)
  • white cabbage ¼, very thinly sliced
  • vegetable oil for deep-frying
  • white bread 8 slices, crusts removed and cut into 10cm x 10cm squares
  • tonkatsu sauce (see notes below)


  • Kewpie or mayonnaise 3 tbsp, (see notes below)
  • tonkatsu sauce 1 tbsp
  • rice vinegar 1 tbsp


  • Step 1

    Put the flour, egg and most of the breadcrumbs into 3 separate shallow bowls. Spread the reserved breadcrumbs onto a baking tray.

  • Step 2

    Hold the tail of each sardine and lightly dredge in the flour (avoiding the tail). Pat off the excess flour and then lightly coat in egg, shaking off any excess again before coating in the crushed panko. Put on the tray of breadcrumbs to stop them going soggy.

  • Step 3

    Combine the Kewpie dressing ingredients with 1/2 tsp salt. Put the cabbage into a large bowl and lightly coat in the dressing.

  • Step 4

    Fill a pan no more than 1/3 full with oil and heat to 170C or until a cube of bread browns in 40 seconds. Fry the sardines for 2 minutes or until golden brown, then drain on kitchen paper.

  • Step 5

    Lay the bread slices on a chopping board, and brush liberally with tonkatsu sauce so that it soaks in. Put sardines on 4 of the bread slices, top with the cabbage and the other slices of bread. Cut in 1/2  and serve.

Kewpie is a brand of Japanese mayonnaise. Tonkatsu sauce is a fruity, spicy brown sauce. Find both in Asian grocers, some larger supermarkets (including the Waitrose Ingredients range) and online – or, to make your own tonkatsu, click here.

Katsu Sando Recipe Tonkatsu

Read our full review of Two Lights here...

Two Lights

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Nutritional Information

  • Kcals 650
  • Fat 30.8g
  • Saturates 5g
  • Carbs 62.6g
  • Sugars 5.3g
  • Fibre 5g
  • Protein 28.2g
  • Salt 2.5g