Lemon drizzle sponge pudding - Good Food Middle East

Ingredients

• 250g soft butter, plus extra for the dish
• 380g caster sugar
• 4 eggs
• 250g self-raising flour
• 1 tsp baking powder
• 3 lemons, zested and juiced
• 2½ tbsp cornflour
• custard or cream, to serve
• 50g icing sugar
• 1 lemon, juiced and zested