Gluten-free Calzone with Chocolate, Nuts and Banana | Sulten

Ingredients

• 1.5 dl lukewarm water
• 0.5 pack dry yeast
• 1 tbsp sugar
• 280 g gluten-free all-purpose flour
• 15 g butter
• 3 tsp olive oil
• 1 tsp vinegar 7%
• 1 tsp salt
• 1 x eggs
• 1 dl heavy cream
• 100 g dark baking chocolate
• 50 g walnuts
• 1 x banana
• 2 tbsp powdered sugar