Mega Cinnamon Bun - Dinner With Julie

Ingredients

• 1/4 cup warm water
• 2 tsp active dry yeast
• 1/4 cup sugar
• 2 1/2 cups all-purpose flour
• 1/2 cup milk, warmed
• 1 large egg
• 1/4 cup butter, softened
• 1/2 tsp salt
• 1/4 cup butter, melted
• 1 cup packed brown sugar
• cinnamon
• 1-2 Tbsp butter, melted
• 1/2 cup icing sugar
• 1 Tbsp milk or cream (plus extra as needed)
• 1/2 tsp vanilla