In a small bowl, mix the red wine and cranberries together and allow to sit for 30 minutes to an hour or until the cranberries look plump. You can gently heat the wine and cranberries on the stove or in the microwave to speed up the process.

Preheat oven to 350 degrees F. and grease and flour an 8 by 8 inch pan.

Mix flour and sea salt in a bowl and set aside.

In a bowl over boiling water, heat the butter and chocolate until just melted and mixed together.

Remove the bowl from heat and beat in the eggs one at a time. (If the bowl seems very hot, you may want to let it cool for about 5 minutes before adding the eggs).

Add the sugar and cocoa powder and mix, then add the flour and mix well.

Mix in the red wine and cranberries. Fold in walnuts, if using.

Pour the mixture in the baking pan and bake for about 50 - 55 minutes or until an inserted toothpick comes out with only crumbs.

Allow the brownies to cool in the pan about about 25 - 30 minutes, then remove to cool completely on a wire rack.