Now this one is great. I got it from Nigel Slater's Simple Suppers (episode 4, recipe also available on BBC online) and it worked a treat.
Nigel Slater used fresh lemons and honey, but I didn't have any fresh lemons, so I used that lemon stuff you get in a bottle. And I thought I didn't have any honey (but I did, it was hiding in the larder) so I used maple syrup.
I mixed together about six long squirts of plastic lemon juice, a long slug of maple syrup, two large squished garlic cloves and some black pepper and put in four chicken thighs to marinate for about half an hour.
Then I tipped it all into a roasting tin and sprinkled over salt and baked for 45 mins at 220C, turning twice. And it was DELICIOUS, even with slightly wrong ingredients... can't recommend highly enough.
So easy, impossible to get wrong.