Start with cold heavy cream. The colder the cream, the easier and more successful it will whip. You can even chill the mixing bowl in the refrigerator before you start.
Whip the heavy cream, sugar and extract together on medium-high speed. This should only take a few a couple of minutes. Whip until it has a billowy, smooth texture.
NOTE: To add different flavors, beat cream until soft peaks form. Then add extracts and/or other flavorings. Beat until stiff peaks form.