Dear, Mrs, Delia,
Your cooking school video lessons are exceptionally off the beat.
There are recipes with the high importance of the right techniques to follow. In these cases, it would be helpful to make additional videos with more details maybe videos of the whole time of cooking. They would be not for everyone but rather for those who are ready to spend time for long watching to make perfect recipe.
Plus, additionally, you may seriously consider a possibility to send your rightly cooked recipes to someone who asks you to help with the correct technique of the cooking and cannot realize the final consistency. It might be a part of the recipe like a meringue for example.
With my the very Best regards,