Prepare the brownie batter

• Pour the oil and water into a mixing bowl.
• Add the eggs and whisk until smooth.
• Stir in the brownie mix until just combined.

Bake the brownie base

• Pour the batter into a greased baking dish.
• Bake at 180 °C until set.

Make the tiramisu cream

• Combine the mascarpone, heavy cream, sugar, salt, vanilla extract and coffee.
• Blend until smooth and thick.

Assemble

• Spread the tiramisu cream over the cooled brownie base.
• Chill before slicing and serving.