I use 18cm Round Cake Tin, but you can use a Bamboo Steamer if you have one. Line the base and sides of a cake tin with baking paper. If you use a Bamboo Steamer, use a large sheet of baking paper to line.
Place Milk and Butter in a heat-proof bowl and microwave for 30 to 60 seconds or until Butter melts. You can do this process using a saucepan.
Beat Eggs in a large bowl. Add Brown Sugar and mix well. Add Milk & Butter mixture and mix well.
Add Self-Raising Flour and Bi-Carb Soda, and mix well. *Note: Bi-Carb Soda is essential. It creates a unique flavour.
Heat the steamer with enough water to steam for 20 minutes.
Pour the cake mixture into the prepared cake tin and scatter Raisins OR Sultanas on top. Carefully place the tin into the steamer, cover with lid and cook for 20 minutes OR until cooked through. *Note: I recommend to wrap the lid with tea towel or large cloth, so that water won’t drip onto the cake.
Enjoy the cake warm, though it’s still tasty when cold.
