My Mom's Key Lime Pie - Marie Saba

Ingredients

• 1 9-inch pie crust, homemade or store bought, cooked and cooled
• 3 Tablespoons (27 g) corn starch
• 1 cup (250 ml) heavy whipping cream
• 1 cup (222 g) sugar or (192 g) cane sugar-stevia mix
• 1/3 cup (75 ml) fresh lime juice
• 1 tablespoon (2 g) finely grated lime zest
• 1/4 cup (57 g) unsalted butter
• 1 cup (227 g) sour cream
• 1/4 cup (48 g) sugar
• 2 teaspoons (6 g) vanilla extract
• 3/4 cup (170 g) sour cream