cover the tray with olive oil

salt and pepper the chiken legs

place the inside of the leg upside

put garlik and onion on them

add the oregano and some lemon juice

put potatoes aroun the tray ( salt and pepper them)

pour half the beer on them

place the chiken in the oven at 180°C half an hour

turn them around and pour.the rest of the.beer. leave it.another half and hour.in the oven