Triple chocolate pistachio stuffed cookies from Nikibakes

Ingredients

• 8-10 tbsp pistachio spread
• 100g unsalted butter, melted
• 150g light brown sugar
• 1 egg, room temperature
• 1.5 tsp vanilla extract
• 160g plain flour or gluten free flour
• 80g cocoa powder
• 1/2 tsp baking powder
• 1/2 tsp bicarbonate of soda
• 1/2 tsp sea salt, plus extra for garnish
• 100g milk and dark chocolate chips
• 80g white chocolate/caramelised white chocolate