-
Preheat the oven to 375 degrees F.
-
Line an 8X8 inch square pan with parchment paper and let the parchment paper over hang on any two opposite sides of the baking pan.
-
In a large microwave safe bowl, add the butter, oil and dark (or semi-sweet) chocolate pieces. Microwave the bowl for 1 minute and using a whisk, mix the butter-oil-chocolate mixture until it melts completely. It may need another 10-30 seconds in the microwave, but whisk it well before microwaving it longer than the 1 minute.
-
To the melted chocolate, add the sugar, eggs, salt, coco powder, oat flour and whisk them well.
-
Add the chocolate chips, hazelnuts and raisins and whisk them in.
-
Pour the brownie batter into the prepared baking pan and bake for 18-22 minutes.
-
The brownies will puff slightly and if you insert a toothpick in it, only a few moist crumbs should stick to the toothpick.
-
Cool the brownies in the pan for 5 minutes before lifting the brownies using the over-hanging parchment paper.
-
Slice and serve.