Preheat your oven to 325°F (165°C) and grease a 10-inch tube pan.

Cream together the softened butter and granulated sugar for 3-4 minutes until light and fluffy.

Add eggs one at a time, beating well after each addition until fully integrated.

Whisk together the all-purpose flour and baking soda, and incorporate it into the creamed mixture alternating with the buttermilk.

Stir in lime juice and zest until combined, ensuring all ingredients are mixed well.

Pour the batter into the prepared pan and bake for 60-70 minutes or until a toothpick comes out clean.

Cool in the pan for 10 minutes, then invert onto a wire rack to cool completely.