Blueberry Swirl Cheesecake Brownies - Blueberries

Ingredients

• 1 cup fresh blueberries, divided
• 1/4 cup granulated sugar
• 2 tbsp apple cider vinegar
• 1 tsp cornstarch
• 1/4 tsp ground cinnamon
• 1 tbsp butter, at room temperature
• 8 oz package cream cheese, at room temperature
• 1/3 cup granulated sugar
• 1 egg, at room temperature
• 1 tbsp heavy cream, at room temperature
• 1 tsp vanilla extract
• 1/2 cup unsalted butter
• 2 oz unsweetened chocolate, finely chopped
• 1 cup granulated sugar
• 1/4 cup cocoa powder
• 1/2 tsp salt
• 2 eggs
• 1/3 cup all-purpose flour