Step 1

Crack two eggs in a bowl and whisk. Now, add brown sugar whisk until the sugar dissolves completely.

Step 2

Next, add the oil and orange zest and mix thoroughly.

Step 3

In a separate bowl, sift together the dry ingredients. Then, mix these into the wet ingredients to create a thick batter.

Step 4

Add the rum gradually into the mixture and mix well. Adjust rum amount according to your taste.

Step 5

Lay a parchment paper on your baking tray, grease it, and pour the mixture into it. Bake for about 30 mins at 350°F.

Step 6

In a separate bowl, cream powdered sugar together with butter. Then, add 1.5 tbsp instant coffee and taste. Add more if desired. Add cocoa powder to make this a chocolate frosting.

Step 7

After the cake is done, take it out and let cool before inverting.

Step 8

After it cools, slice horizontally and remove the top half.

Step 9

Now, apply the frosting evenly and top with the reserved half to create a sandwich, of sorts.

Step 10

Press together gently, let cool, and cut into pieces. Serve.

Step 11

Enjoy!