Drain chicken thoroughly and pat dry. Fill a plastic bag with flour, paprika and black pepper and shake to mix. Put two pieces of chicken into the bag and shake coating completely. Preheat oven to 350 degrees. Heat oil in frying pan until hot.
Fry chicken pieces a few at a time until brown and crisp.
This will take about 6-8 minutes per batch. Arrange chicken in a single layer in a shallow baking pan. Sprinkle evenly with lemon zest and brown sugar. Mix chicken stock and lemon juice together and pour around chicken pieces. Put a slice of lemon on top of each piece of chicken.