To make about 1 & ½ cups of whipped cream start with a clean, empty jar that can hold at least 12 ounces, like a pint Mason jar. Place the following ingredients in that mason jar, and make sure the cream is cold:
Close the lid tightly and vigorously shake the jar for 60 to 90 seconds. Check the consistency of the cream, if it’s not as stiff as you’d like, shake again for another 20 to 30 seconds until it reaches your desired consistency. The sound will actually change while you’re shaking it too, so keep an ear out for that!