Remember, it's very simple to have an oven tested professionally, and it only takes about five minutes.
Delia SmithGood kitchen equipment is expensive, but most items last a lifetime and will pay for themselves over and over again
Delia SmithA cake is a very good test of an oven: if it browns too much on one side and not on the other, it's not your fault - you need to have your oven checked.
Delia Smith