About Step 3: I was definitely a bit worried when I stirred the egg mixture into the butter and sugar mixture in the double boiler. It separated immediately and definitely looked like it curdled, even though I tempered the eggs before adding them. Even after stirring it vigorously for a few minutes, it still looked pretty bad and I was about to toss it and start over. Then it suddenly came together and was smooth and creamy and thickened perfectly. So hang in there.