Child’s birthday cake
Preheat the oven to 160°C/325°F/Gas mark 3. Grease a 3.6-litre/6pt ovenproof glass mixing bowl. Line the bottom with greaseproof paper.
Beat together the butter, sugar, eggs, flour and orange zest. Turn into the bowl and level the surface. Bake for 1 hour 10 minutes until just firm.
Loosen from the bowl by running around the edge with a knife, then turn out and leave to cool on a wire rack. This is the perfect base cake for brightly coloured icing for a child’s birthday