Asparagus soup en croûte from the Big Green Egg

Ingredients

• 500 g flour, plus extra for dusting
• 3 eggs
• 5 g sugar
• 1 tsp turmeric
• 175 ml milk
• 8 g dried yeast
• 100 g soft butter
• 10 g salt
• EN CROÛTE (preparation)
• 30 g flour
• 1 egg
• 1 tbsp sesame seeds
• Fleur de sel
• 750 ml asparagus cooking liquid
• 100 g asparagus beans
• 300 ml whipping cream
• 50 g butter
• 3 cold, cooked asparagus (optional)