Caramel and Macadamia Slice

I decided to try my hand at making a slice seeing as so many of you voted in its favour in the last poll. My sister is a Macadamia Slice connoisseur and when she tried the slice she said it was the best she ever tasted! Try it and see how it goes!

Ingredients for Base
1 egg
1/2 cup caster sugar
1/2 tsp vanilla
1/3 cup vegetable oil
2/3 cup plain flour
1/4 cup self-raising flour

Ingredients for Top
200g butter
1 cup brown sugar
2 tbsp golden syrup
200g unsalted macadamia nuts, roughly chopped
50g dark or milk chocolate, melted

Method
Preheat oven to 180 or 160 for fan-forced. Grease and line a 18cm by 28cm slice pan. Using an electric mixer, beat egg and sugar together until thick and pale. Add oil and beat until well-combined. Fold in combined, sifted flours. Spoon into prepared tray and smooth out evenly with hands or a baking spatula. Bake for 20 minutes until puffed and golden. Meanwhile, prepare Macadamia Topping. Place butter, sugar and syrup in a saucepan over low heat. Stir for 5 minutes until butter melts and sugar dissolves. Simmer, without stirring, for 10 minutes until caramelised. Add nuts. Pour topping over the base and working quickly, spread it evenly. Bake for another 10 - 12 minutes, until golden. Cool in pan and drizzle with melted chocolate when completly cool. Cut into pieces to serve.