Preheat your oven to 325°F (160°C).
Line your baking pan with parchment paper.
This prevents sticking and makes cleanup easy.
Grease the paper lightly with butter.
Beat softened butter and brown sugar together.
Mix until light and fluffy.
This takes about 3-4 minutes.
The mixture should look pale and creamy.
Crack eggs into the mixture one at a time.
Beat well after each egg addition.
This creates a smooth, well-combined batter.
Don't rush this step.
Sift flour, baking powder, and spices together.
Add a pinch of salt.
Mix these dry ingredients in a separate bowl.
This ensures even distribution of spices.
Add dry ingredients to the wet mixture gradually.
Fold gently with a wooden spoon.
Don't overmix or the cake becomes dense.
Add orange juice and zest now.
Stir in dried fruits and chopped nuts.
Make sure they're evenly distributed.
The batter will be thick and chunky.
This is perfectly normal.
Pour batter into your prepared pan.
Spread it evenly with a spatula.
Bake for 45-50 minutes.
Check with a toothpick inserted in center.
It should come out clean when done.
Let the traybake cool in the pan.
Wait at least 20 minutes before cutting.
Cut into neat squares or rectangles.
Serve at room temperature or slightly warm.