21.   In a small saucepan, heat cream on low heat until almost simmering.

22.   In medium heavy-bottomed saucepan, heat the cream until very hot.

23.   In medium saucepan, heat cream until small bubbles form around edge of pan.

24.   Meanwhile, heat cream to a simmer.

25.   Set this aside for a moment while you heat the cream in the same frying pan.

26.   While the potatoes cook, gently heat the cream with the butter in a small saucepan.