Ingredients:

• 250g salted butter,softened 
• 200g light brown sugar
• 1/2 tsp coffee oil
• 1 egg
• 1 tsp vanilla extract
• 1/4 cup oats, processed to bits in a chopper 
• 1 pack of semi-sweet chocolate chips OR chocolate chunks 
• 300g self-raising flour

Method:

1. This is the most important step at least 2 hours before, or the night before, beat the egg with the vanilla and the coffee oil to infuse or you can do this the night before, refrigerate it then bring it to room temperature before baking.
2. Preheat oven to 160C.
3. To the softened butter, beat in the sugar and the salt to combine. 
4. Beat in the egg and stir in the processed oats and the chocolate chunks. Sift the flour and fold it in, this dough will not be too stiff but not too wet either.
5. For small cookies, place half-tsp of the dough, spaced slightly apart on the cookie sheet and bake for 9 to 10 minutes.
6. For large cookies, place rounded tbsp of the dough spaced apart on the cookie sheet and bake for 20 to 22 minutes.
7. Cool completely and let it sit overnight in an airtight container, this is for the flavour and fragrance to develop further.