Preheat oven (electric cooker: 200 °C/circulating air: 175 °C/gas: see manufacturer). Squeeze lemon for the barbecue sauce. Mix 1-2 tablespoons of juice, ketchup, honey, paprika powder, chili and 3 tablespoons of oil. Season to taste with smoked salt.
Brush a baking tray with a little oil. Wash chicken legs and pat dry. Spread a good 1/3 of the barbecue sauce all around, place on the baking tray. Roast in a hot oven for 40-45 minutes.
Remove the chicken legs from the oven. Wrap parchment paper strips around the legs and tie them with kitchen string. Arrange chicken legs. Add the remaining barbecue sauce. Serve with salad and baguette or French fries.