Caramel Brownies

Caramel

• 9 oz sugar
• 7 oz heavy whipping cream, divided
• 36 oz water, divided
• 1 oz unsalted butter, cold, in one cube (approx. 1 in. x 1 in.)
• 1 tsp lemon juice
• 1 tbsp vinegar

Brownies

• 7 oz dark chocolate (50% cocoa), broken into pieces
• 3 oz whole hazelnuts
• 3 ½ oz unsalted butter, cut into pieces
• 4 ½ oz all-purpose flour
• 5 ½ oz dark brown sugar
• 1 tsp baking powder
• 3 large eggs