Prepare and Preheat: Grease and line three 20 cm shallow cake tins. Preheat the oven to 160 degrees Celsius.
Mix the Wet Ingredients: In a large bowl, combine brown sugar, oil, golden syrup, vanilla essence, and eggs. Whisk until well combined.
Combine Dry Ingredients: In another bowl, sift together self-rising flour, plain flour, bicarbonate of soda, and cinnamon. Mix to combine.
Bring it Together: Add the wet ingredients to the flour mix and stir until the batter comes together. Fold in the grated carrot.
Bake: Divide the cake batter between the three pans. Bake in the preheated oven for approximately 40 minutes or until the cakes are cooked. Check with a skewer.
Cool and Frost: Cool the cakes in the pans for 15 minutes before turning them onto a wire rack to cool completely. While the cakes are cooling, prepare Lindy's Cream Cheese Frosting.
Lindy's Cream Cheese Frosting: Use an electric mixer or mix master to beat the cream cheese until light and fluffy. Add the lemon juice and sifted icing sugar, beat gently until the frosting is a thick, smooth consistency.
Assemble the Cake: Spread frosting on top of two cakes. Layer the cakes, placing the third on top. Secure the layers with a skewer pushed down through the middle. Spread the remaining frosting all over the cake using a palette knife.
Refrigerate and Decorate: Refrigerate the cake for an hour. Before serving, decorate with freeze-dried edible flowers for that extra touch of beauty.