01 -
Preheat the oven to 175°C. Grease and flour a bundt pan or two loaf pans thoroughly.
02 -
Combine white sugar, unsalted butter, and shortening in a large mixing bowl. Beat with an electric mixer on medium speed until the mixture is light and fluffy.
03 -
Add the eggs individually, mixing well after each addition to ensure an even texture.
04 -
Mix in heavy cream, Key lime juice, lime zest, and vanilla extract. Stir until the batter is well combined.
05 -
In a separate bowl, whisk together cake flour, baking powder, and salt. Gradually fold the dry mixture into the wet ingredients until just combined. Avoid overmixing.
06 -
Pour the batter evenly into the prepared pan(s). Bake in the preheated oven for 55 to 65 minutes, or until a skewer inserted into the centre comes out clean.
07 -
Allow the cake to cool in the pan for 10 minutes, then gently invert onto a wire rack to cool completely.
08 -
For the glaze, whisk together powdered sugar, Key lime juice, and vanilla extract until smooth. Drizzle over the cooled cake before serving.