Place the fresh strawberries in a blender and blend until smooth. If needed, add a splash of water to help the blending process. Strain if you want a smoother texture. You should have about 1/4 cup of purée.
Ensure the heavy cream and mixing bowl are well chilled to help achieve a light, fluffy texture.
Pour the chilled heavy cream into the bowl and whip with an electric mixer on medium-high speed until it starts to thicken, about 1 to 2 minutes.
Gradually add the powdered sugar, salt, and vanilla extract while continuing to whip until soft peaks form.
Slowly drizzle in the strawberry purée while continuing to whip. Then increase the mixer speed to high and beat until stiff peaks form. If desired, add a small amount more of powdered sugar for added sweetness or thickness.
Use immediately or store in the refrigerator for up to 2 days. Note that the whipped cream may lose some volume over time.