Blueberry buns in a pan - Ankarsrum UK

Ingredients

• 500 g milk, 3% fat content
• 50 g fresh yeast
• 100 g caster sugar
• 150 g butter, room temperature
• 1 tsp salt
• 2 tsp cardamom, freshly ground
• 1 tbsp vanilla sugar
• 780-900g of wheat flour
• 190-250 g blueberry jam.
• 1 tsp vanilla sugar
• 3 tsp cornstarch, divided
• 180 g frozen blueberries
• 75 g caster sugar
• 75 g water
• Icing sugar