Should I grease my baking tins?

This helps stop food sticking. Brush the tin with melted butter or use some baking paper with a little butter on it to rub around the inside of the tin. 

Dry roast chicken?

Avoid a dry chicken by stuffing some flavoured butter under the skin before roasting. Simply ease your fingers under the skin of the chicken breast to create a pocket (without breaking through) and fill it with softened flavoured butter. The butter bastes and flavours the chicken as it cooks leaving you with a moist and tender roast!