50g slightly salted butter, melted, plus extra for greasing
250g fine polenta or cornmeal, plus extra for dusting
325g can sweetcorn, drained
4 large eggs
1 tbsp golden caster sugar
100g plain flour
2 tsp baking powder
1 tsp bicarbonate of soda
Heat oven to 180C/160C fan/gas 4 and brush a 900g loaf tin with melted butter, then dust it with polenta and shake out the excess. Tip 175g of the sweetcorn into a food processor with the remaining ingredients and 1 tsp salt. Blend until smooth, then remove the blade and stir through most of the remaining sweetcorn.
Pour the batter into the tin, scatter over the last of the sweetcorn and bake for 45-50 mins until risen and golden. Insert a skewer into the centre – it should come out with a few moist crumbs, but the mixture should not be wet. Return to the oven for a further 5-10 mins if necessary, then test again.
Cool the loaf in its tin for 10 mins, then transfer to a wire rack to cool. Will keep, wrapped in cling film, for up to 3 days, or freeze in slices for up to 2 months.