Salted Caramel Apples for Bonfire Night

Ingredients

• 8-10 small to medium sized unwaxed red apples (such as pink lady)
• 400g white sugar
• 100g liquid glucose
• ¼ teaspoon ground sea salt
• 1 teaspoon vanilla bean paste
• 100ml water
• 2 tablespoons apple cider vinegar
• 300ml pure cream (35% fat) – or thickened cream
• 100g unsalted butter