Crisp chicken burgers with lemon mayo

• chicken breasts↗4
• slices white bread↗3

  toasted

• egg↗1
• Dijon mustard↗1 tsp tsp
• lemon↗zest 1

  zest 1, juice from ½

• reduced-fat mayonnaise↗4 tbsp tbsp
• ciabatta↗4

  buns, warm or toasted

Step-by-step instructions

1. 1

   Heat grill to high. Put the chicken breasts between 2 pieces of cling film and bash with a rolling pin until they’re about half their original thickness. Whizz the toast in a food processor to rough breadcrumbs, then tip out onto a plate.

2. 2

   Beat the egg and mustard together in a bowl and season. Dip the chicken into the egg, let the excess drip back into the bowl, then press into the toasty breadcrumbs. Put under the grill on a flat baking sheet and grill for about 10 mins, turning once, until golden and crisp on both sides and the chicken is cooked through.

3. 3

   Beat the lemon zest, juice and lots of black pepper into the mayonnaise. Spread some of the mayo onto the bottom halves of the buns, top with a chicken breast and salad of your choice and serve.