Steps:

1. Coat your pan with butter and keep aside
2. Pre heat your oven to 150 ℃for 20 minutes
3. Cream your butter with the soft brown sugar and Hazelnut Essence to form the creamed butter mixture
4. Grind the hazelnut coarse using a Pestle and Mortar
5. Add flour and ground hazelnut into creamed butter mixture
6. Knead the dough till it forms a ball
7. Pat the dough into the buttered pan
8. Bake in an oven on the middle row for about 20 minutes
9. Let it cool for 10 minutes, then cut. I have added about 2 tablespoons of chocolate sauce!