FOR THE CARAMEL

1. The day before:  Cook the caramel.  Peel the paper label from the milk and place the can in a large pot. Cover with at least two inches of water and cook for two hours, making sure there is water covering the can of milk at all times. Allow the can of milk to cool for about an hour and place it in a refrigerator until ready to use. Cool completely before opening or it will explode.

FOR THE BROWNIES

1. Preheat oven to 325 degrees.
2. Cut a piece of parchment paper the width of a 9″ x 9″ square baking pan, and long enough to hang over both sides of the pan. Place a small dab of butter on the bottom and two sides where the paper will be to hold the paper in place. Line the pan with the paper. Butter the sides of the pan and all of the paper on the inside of the pan. Sprinkle the sides and surface with cocoa powder.
3. In a medium bowl, combine the flour, cinnamon, cocoa, and 3/4 teaspoon of the salt.
4. Melt the butter in a small bowl until it is melted and very hot. Break the bar of chocolate into pieces and drop it into the melted butter. Let chocolate and butter set for two to three minutes until the chocolate is beginning to melt and whisk the two together.
5. In a large mixing bowl, combine the butter-chocolate mixture, sugar, eggs, and vanilla. Mix on medium-low speed for about one minute to combine. Add the dry ingredients and mix on low speed just long enough to incorporate the dry ingredients. Do not over mix. Spread the batter evenly in the prepared pan.
6. Place large dollops of the caramel over the top of the chocolate batter. Use a skewer or knife to swirl it into the batter. Scatter one cup of broken pecan pieces over the surface, followed by the remaining 3/4 teaspoon of Kosher salt.
7. Bake anywhere from 1 hour to 1 hour and 10 minutes, depending on your oven, or until a toothpick inserted into the brownie part, (not the caramel), comes out with moist crumbs on it but not clean. Do not overbake.
8. Allow pan to sit for about 15 minutes. Run a knife along the two insides of the pan where there is no paper. Holding the ends of the paper, gently lift the brownies out of the pan and onto a wire rack to finish cooling. For perfect slicing, place the brownies in a refrigerator first until they are very cold.
9. Store brownies in an airtight container.