My Grandmother's Bake Soft Cinnamon Bread in 50

Ingredients

• 2 ½ cups all-purpose flour (315g)
• ¼ cup granulated sugar (50g)
• 1 packet (2 ¼ tsp) instant yeast (7g)
• ½ tsp salt
• ½ cup whole milk (120ml), warmed
• ¼ cup unsalted butter (60g), melted
• 1 large egg (50g)
• ½ cup brown sugar (100g), packed
• 2 tsp ground cinnamon
• 2 tbsp unsalted butter (30g), softened
• 1 cup powdered sugar (120g)
• 2-3 tbsp milk (30-45ml)
• ½ tsp vanilla extract