01 -
Preheat oven to 175°C. Generously grease and flour a bundt pan or two loaf pans.
02 -
In a large mixing bowl, beat together white sugar, unsalted butter, and shortening until light and fluffy.
03 -
Add eggs one at a time, mixing thoroughly after each addition.
04 -
Blend in heavy cream, Key lime juice, lime zest, and vanilla extract until mixture is smooth.
05 -
In a separate bowl, whisk together cake flour, baking powder, and salt.
06 -
Gradually add the dry ingredients to the wet mixture, mixing until just combined to avoid overmixing.
07 -
Transfer batter into prepared pan(s) and bake for 55–65 minutes, until a toothpick inserted in the centre comes out clean.
08 -
Allow cake to cool in the pan for 10 minutes before turning it out onto a wire rack to cool completely.
09 -
In a bowl, whisk together powdered sugar, Key lime juice, and vanilla extract until smooth and pourable.
10 -
Drizzle glaze over cooled cake and allow it to set before slicing.