All ingredients work better at room temperature, so get the butter, eggs etc out of the fridge well before you start cooking.
Check they are fresh by putting them in a jug of still water. If they float then they are stale.
Make sure your mixing bowls are dry and clean, especially for meringue mix.
Ovens cannot always be accurate.Why not invest in a separate oven thermometer to make sure your baking at the correct temperature?
Weighing ingredients with a digital kitchen scale is the most accurate method of baking.
To bring butter to room temperature quickly, cut into small cubes and leave on a plate for about 15 minutes.
Incorporate dry ingredients together with a whisk before adding to wet ingredients, as it helps to give an even mix.
When folding, you should always add the lighter of the two mixtures on top, taking care to use a gentle folding motion to avoid deflating batter.
Always wait for your oven to reach the necessary temperature before putting cakes in oven.
Rotate your cake in the oven after 20 minutes.
Test your cakes with a skewer to see if it's cooked in the middle. When it comes out clean from center of cake, it’s done.
Let your cake cool down on wire racks for 20 minutes before frosting.