Gluten-free Asparagus Stromboli with Mozzarella and Ham - Gluten Free Kitchen

Ingredients

• 400 g gluten-free flour mix, (e.g. Schär Mix B Bread)
• 50 g tapioca starch
• 20 g yeast, fresh
• 2 tbsp olive oil
• 1 tsp psyllium husk powder
• 1 tsp salt
• 1/2 tsp sugar
• extra gluten-free flour, for dusting
• 350 g asparagus, green
• 125 g mozzarella
• 120 g ham, smoked or cooked
• 2 tsp pesto, green
• 2 spring onions
• salt
• pepper
• 1 egg yolk
• 1 tbsp milk