Whisk in the flour and cook, stirring, for 3 minutes.

Increase the speed to high and continue to whisk for 2-3 minutes.

Whisk for 30 seconds, remove from the heat, cover and set aside 3 minutes.

Whisk for 20 seconds and remove from the heat.

The doors into the Level 7 facility whisked apart for her.

Whisk for 4 to 6 more minutes, until mixture is thickened and smooth.

Remove from heat and continue to whisk for another minute.

Return to the heat and whisk for another minute and gradually add the stock.

Boil, whisking, for 2 to 3 minutes until very thick.

Whisk in butter and simmer for a few seconds, then add beans.