01 -
Preheat oven to 175°C. Grease and flour a bundt pan or two loaf pans thoroughly.
02 -
In a large mixing bowl, beat together white sugar, unsalted butter, and shortening until the mixture is light and fluffy.
03 -
Add eggs one at a time, beating well after each addition to fully emulsify.
04 -
Stir in the heavy cream, fresh Key lime juice, lime zest, and vanilla extract, mixing just until combined.
05 -
In a separate bowl, whisk together the cake flour, baking powder, and salt.
06 -
Gradually add the dry ingredients to the wet mixture, mixing until just combined without overworking the batter.
07 -
Pour batter into prepared pan(s) and bake for 55–65 minutes or until a skewer inserted into the center comes out clean.
08 -
Allow the cake to cool in the pan for 10 minutes, then invert onto a wire rack to cool completely.
09 -
Whisk together powdered sugar, Key lime juice, and vanilla extract until smooth. Drizzle evenly over the cooled cake.