Sugar
Caster sugar dissolves easily and is most suitable for cake-making. Being
finer it is more easily creamed than granulated sugar, which is better used
in rubbed-in cakes and scones.
Demerara and other brown sugars are often used in cakes and biscuits to
improve the flavour and colour. Icing sugar should be sieved.
Golden syrup, treacle or honey often replace some, or all of the sugar in
a recipe, giving a rich flavour and colour.
Eggs
These are better used at room temperature, rather than cold from the
fridge, but this is not essential. Eggs add richness to the recipe.
Break eggs separately into a cup to ensure freshness. Medium (standard
eggs) are used in all McDougall's recipes, unless otherwise stated.
Liquids
Milk adds richness to a mixture and gives a closer, heavier texture.
Water gives a lighter, shorter texture. Very cold water is necessary for
certain pastries.
Fats
Use the type stated in the recipe. Butter is used for its flavour and
keeping qualities but margarine is better for giving volume in creamed
cakes. Hard block margarine is most suitable for baking. Soft margarine,
used straight from the fridge is recommended for one-stage recipes.