Add softened cream cheese to bowl and mix together with an electric mixer on medium speed for 2 minutes. I like to use my stand mixer fitted with a whisk attachment but hand mixer also works. 16 ounces cream cheese
Add the flour, sugar, and the salt to the bowl and mix on medium speed until creamy and incorporated. Scrape bowl down with a spatula and continue to mix until completely homogenous. 1/8 teaspoon salt 1 ½ tablespoons all-purpose flour 3/4 cup (150 g) granulated sugar
Add sour cream and vanilla extract, mix well. 1 teaspoons vanilla extract ⅓ cup (80 g) sour cream
Add the egg beating to combine. Scrape the bowl down and mix until completely smooth. 1 large egg
Add lime juice and zest and beat to combine. Scrape down bowl one last time and beat to endure all is incorporated. ¼ cup (60 ml) key lime juice 1 tablespoon key lime zest
Use a cookie scoop to transfer the cheesecake mixture to your cupcake tin. Fill all the way to the top (about a ¼ cup for each). I like to use a medium cookie scoop for this.
Bake at 325℉ (163℃) for 18-20 minutes. Turn the oven off and allow to cool in the oven for 20 minutes. Remove from oven and cool to room temperature for one hour then refrigerate for 2 hours or until firm. Remove from the muffin tin (if they stick loosen around the sides with a knife or metal spatula to gently release. Top with whipped cream before serving.