Preheat the Oven: Preheat your oven to 350°F (175°C). Grease and flour a Bundt pan.

Prepare the Cake Batter: In a large bowl, cream the butter and sugar together until light and fluffy. Add eggs, one at a time, beating well after each addition. Mix in the lime zest, lime juice, and vanilla extract. In another bowl, whisk together the flour, baking soda, and salt. Gradually add the dry ingredients to the wet ingredients, alternating with the sour cream. Mix until just combined.

Bake: Pour the batter evenly into the prepared Bundt pan. Bake for 45-50 minutes or until a toothpick inserted into the center comes out clean. Let the cake cool in the pan for 15 minutes, then invert onto a wire rack to cool completely.

Prepare the Glaze: In a medium bowl, whisk together the powdered sugar and lime juice until smooth and pourable. Adjust the lime juice for desired consistency.

Glaze the Cake: Once the cake is cooled, drizzle the glaze over the top, allowing it to drip down the sides. Garnish with lime zest.