These tips will be updated regularly. The shell colour is related to the breed of hen that laid the egg. Do not boil once yoghurt has been added. You can tip the bran and germ from the sifter back into the flour but sifting introduces air and lightens the cake's texture.
Raw chicken can contain salmonella.
The salmonella will be killed by heat during cooking but any residual bacteria on the cutting boards and implements will multiply and could contaminate other foods. Take them out of the freezer the next morning and they will defrost by lunchtime - with no aroma. Watch carefully as they burn easily.