LPreheat the oven to 180 C or 350 F. Line a square 8 x 8 inch pan with parchment paper or foil. Let two opposite sides of the foil be long so you can pull out the slab of brownies easily later.
In a bowl, whisk together flour, cocoa and salt.
In another bowl, whisk together the melted butter with both sugars.
Add the eggs, one by one and beat well after adding each.
In a saucepan or double boiler, heat chopped chocolate and beer together until melted.
Add this to the butter mixture and whisk until smooth.
Add the flour mixture and whisk until incorporated.
Pour batter into prepared pan and bake at 180 C or 350 F for 25 to 28 minutes. A toothpick inserted in the centre should have only moist crumbs.
CooL completely in pan for atleast 2 or 3 hours. Remove Brownie slab from pan and lice with a sharp knife
Notes
This will last at room temperature for about 5 days You can use any beer of your choice. My measuring cup is 240 ml.