Rachel Allen's spinach and mushroom pancakes recipe

INGREDIENTS

• 25 butter, now softened
• g onion, finely chopped
• 1 baby spinach
• 400 mushrooms, sliced
• g single cream
• 225 freshly chopped parsley
• g squeeze of lemon juice
• 100 salt and freshly ground pepper
• ml sprinkle chopped fresh chives, to garnish (optional)
• 1 butter, softened
• tsp plain flour
• 1 salt
• 1 milk
• pinch eggs
• 1 water