Easy chocolate brownie with macadamia caramel sauce

This would have to be the dessert to end all desserts. With caramel, chocolate and macadamias, does anything sound more amazing?

Ingredients:

• 125g unsalted butter
• 200g cooking chocolate chopped into bits
• 2 large eggs, lightly beaten
• 1 cup raw caster sugar
• 1 cup plain flour
• 1 teaspoon vanilla essence
• 1 teaspoon baking powder

Macadamia caramel:

• 250g white sugar
• ¼ cup water
• 150ml thickened cream
• 150g unsalted butter, diced
• ½ cup macadamias, chopped