Chocolate Sandwich Cookies with Vanilla Cream

Cookie Dough

• 3 ½ oz black sesame seeds
• 6 oz cake flour
• 3 oz unsweetened cocoa powder
• 1 tsp salt
• ½ tsp baking soda
• 7 oz dark chocolate (50% cacao), in pieces
• 8 oz unsalted butter, room temperature, in pieces
• 5 oz sugar
• 1 large egg
• 1 tsp natural vanilla extract

Vanilla Cream Filling

• 10 ½ oz sugar, divided
• 3 ½ oz unsalted butter, room temperature, in pieces
• 1 pinch salt
• 1 tbsp whole milk
• 1 tsp natural vanilla extract