Step 1

Place 1 piece of chicken between 2 sheets of baking paper. Pound with a meat mallet or rolling pin until 1cm thick. Repeat with remaining chicken.

Step 2

Lightly grease a baking tray. Place flour on a plate. Whisk egg and milk together in a shallow bowl. Combine breadcrumbs, parmesan and garlic powder in a shallow bowl. Coat chicken, 1 piece at a time, in flour, shaking off excess. Dip in egg mixture, then coat in breadcrumb mixture. Place, in a single layer, on the baking tray. Cover with plastic wrap and refrigerate for 10 minutes.

Step 3

Preheat oven to 200°C. Place potatoes in a roasting pan. Spray with oil. Season with salt. Roast, turning occasionally, for 25 minutes.

Step 4

Spray both sides of chicken with oil. Place in oven above potatoes. Bake, turning chicken halfway through cooking, for 15 minutes or until chicken is golden and cooked through and potatoes tender.

Step 5

Meanwhile, combine sour cream, gherkin, dill and capers in a bowl. Season with salt.

Step 6

Divide rocket and potato between plates. Top with chicken. Dollop with cream mixture. Serve with lemon wedges.