Source:

I. Clapham

Serves/Makes:1 8 inch cake

Ingredients

• 5 oz (140 grm). butter or margarine
• 5 oz (140 grm). caster sugar (it's a fine sugar)
• 3 eggs
• 8 oz (224 grm). self-rising flour
• few drops of lemon essence
• thin slices of Citron peel (optional)

Preparation

• Cream fat and sugar.
• Beat in lightly whisked eggs with a little flour.
• Add essence, then fold in the remaining flour.
• Place mixture in a greased 7-8 in cake tin.
• Bake in a moderate over; 350 degrees (175 C.) for about 1 1/4 hours. Place peel on top after half an hour in oven.

Comments

Taken from Bero Flour Recipe Book - 37th edition (British)

In the recipe it gives 5 oz. as 125 g and 8 oz. as 200 g. I suppose as long as one or the other weight is used and mixed weights are not, then the recipe should be o.k.