Single Serving Brownie

1. Preheat oven to 325F. 
2. In a large bowl melt the butter and oil in the microwave (30 seconds). Cool for 2 minutes if microwaved for longer than 30 seconds. 
3. Add granulated sugar and the brown sugar to the butter/oil and whisk until the mixture is fully combined. 
4. Add in the egg and the vanilla and whisk to combine. 
5. Whisk in the flour, cocoa powder, and salt until no chunks of flour remain. 
6. Fold in the chocolate chunks then pour the brownie batter into the prepared baking pan. Spread the brownie batter to cover the full loaf pan and bake in for 25 minutes. 
7. Sprinkle with flakey salt. 
8. Let the brownies cool down completely before slicing into them and enjoying!