Preheat the oven to 350 degrees.
Grease a 9x13 baking pan.
Melt the chocolate in a microwave or over a double boiler.
Add the cannabutter to the chocolate and mix thoroughly. Then add the sugar, salt, and vanilla.
Add the eggs one egg at a time and mix until they are fully combined with the butter and chocolate.
Mix in flour and walnuts.
Put the batter on the baking pan and bake at 350 for 25 to 30 minutes.
After removing the brownies from the oven, let them cool. Slice into 16 squares.