Malva pudding

Sponge

• 30 g unsalted butter, plus extra to grease
• 100 g raw sugar
• 2 eggs
• 30 g smooth apricot jam
• 1 tsp bicarbonate of soda
• 200 g milk
• 1 tsp white vinegar
• 140 g self-raising flour
• 1 pinch sea salt

Sauce

• 200 g pouring (whipping) cream
• 80 g white sugar
• 1 tsp natural vanilla extract
• 80 g boiling water
• 80 g unsalted butter