Strawberry upside-down cake recipe

Ingredients

• 225g unsalted butter, softened, plus extra for greasing
• 225g golden caster sugar

For the filling

• 4 large eggs
• 1 orange, zested, plus 1-2 tbsp juice
• 1 vanilla pod, seeds scraped out
• 225g (7 1/2oz) self-raising flour
• ice cream, to serve (optional)

For the syrup and fruit

• 150g (5oz) golden syrup
• 1 vanilla pod, seeds scraped out
• 1 orange, zested, plus 1 tbsp juice
• 250g (8oz) strawberries, halved, plus extra to decorate