Use an electric mixer to whip 1 1/2 cups of heavy cream until it forms stiff peaks. Then, carefully add in the sugar. Powdered sugar works best because it dissolves easily. However, granulated sugar will also do the trick. If desired, deepen the flavor with a few drops of vanilla extract. Check out my easy-to-follow recipe if you need more information. But for this recipe, we use unsweetened whipped cream.