It depends on what type of cake your are serving. You will get more portions from a fruit cake, than a sponge, and it also depends on when you are serving it. If it is dessert, then you will need larger portions, but if just being served with coffee, a finger slice is enough.
SQUARE CAKE (based on 3" depth)
13cm / 5”
15cm / 6”
17.5cm / 7”
20cm / 8”
23cm / 9”
25.5cm / 10”
28cm / 11”
30cm / 12”
Sponge
12
18
24
32
40
50
60
72
Fruit
27
36
51
64
84
100
125
144
ROUND CAKE (based on 3" depth)
13cm / 5”
15cm / 6”
17.5cm / 7”
20cm / 8”
23cm / 9”
25.5cm / 10”
28cm / 11”
30cm / 12”
Sponge
10
14
20
25
33
39
49
56
Fruit
21
28
40
50
66
78
98
113
Ingredients
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Method
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Debbie Cattle
Debbie began cake decorating at the age of 16. Following various evening courses, by the time she was 18, she was employed by one of Hertfordshire's leading bakeries to make sugar flowers and wedding cakes.
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