preheat oven to 350.
Add the graham crackers and brown sugar to a food processor, process until just crumbs remain. While the food processor is running, slowly add the butter until well combined and resembles wet sand.
Press firmly into the bottom of an 8x8 baking dish.
In a large bowl stir together the oats, flour, brown sugar, white sugar, baking soda and 1/2 teaspoon salt.
Make a well in the center, add the melted butter, beer, yolks, and vanilla, stir until just combined.
Add the chocoloate chips in an even layer on top of the crust.
Press the filling into an even layer over the chocolate chips, sprinkle the top with the remaining salt.
Bake at 350 until the top is golden brown, about 22-26 minutes.
Allow to cool completely before cutting.