Cinnamon Blueberry Breakfast Buns

Ingredients

• 1 cup warm buttermilk (between 105 and 110 degrees F.)
• 1 Tbsp. active dry yeast
• 1/2 cup sugar
• 6 Tbsp. melted salted butter, cooled
• 2 large eggs
• 1 tsp. salt
• 4 and 1/4 cups all purpose flour
• Nonstick cooking spray
• 2 cups fresh blueberries, divided
• 1/4 water
• 4 tsp. lemon juice, divided
• 1/2 cup Bonne Maman Wild Blueberry Preserves
• 12 Tbsp. softened salted butter, divided
• 3/4 cup light brown sugar
• 1 Tbsp. ground cinnamon
• 4 oz. softened cream cheese
• 1 tsp. vanilla extract
• 2 cups confectioner’s sugar