Chocolate salted caramel petit fours

Name: Chocolate salted caramel petit fours
Prep time: 50 min
Cook time: 7 h 10 min
Total time: 7 h 10 min
Yield: 16 pieces
Ingredients: 200 g dark chocolate (70% cocoa); 40 g unsalted butter; 40 g light brown sugar; 2 tsp golden syrup; 40 g self-raising flour; 20 g cocoa powder; 80 g light brown sugar; 60 g pouring (whipping) cream; 80 g salted butter; ½ tsp gelatine powder; 1 ½ tsp golden syrup; ¼ tsp salt; ½ tsp vanilla bean paste; 1 tsp gelatine powder; 2 tbsp milk; 250 g pouring (whipping) cream; 50 g pouring (whipping) cream; sea salt flakes; 20 g salted butter; ½ tsp gelatine powder