While whisking vigorously, add about 1/2 cup of the sauce to the yolks.

Stir or whisk vigorously to create a smooth, thick batter.

While whisking vigorously, slowly drizzle in the oil until incorporated.

Before placing the bowl over the heat, whisk vigorously until the mixture forms a ribbon.

Set the bowl over a pot of boiling water and whisk vigorously until frothy, about 5 minutes.

Then add the hot milk to the egg mixture, whisking vigorously all the time.

Then, whisking vigorously, slowly add the oil in a thin stream.

Add the remaining sugar and whisk vigorously until the egg whites form soft peaks.

Add olive oil a few drops at a time, whisking vigorously to emulsify.

When bubbles have subsided, add flour and whisk vigorously for 1 minute.