pre-heat oven to 350˚
put the flour, brown sugar, and salt, in the bowl of a food processor, give it a little pulse
cut the butter in chunks and put it in the food processor, pulse until the mix looks like crumbs
press in the bottom of a 9X13 pan, you can line it with foil or parchment if you like
bake 15 minutes
meanwhile, melt the butter
while it's melting whisk the sugars and flour together
once the butter is melted set it aside to cool a little
roughly chop the pecans
when the butter is cooler add it the sugar mix and whisk it in
add the eggs and milk, whisk gently again
then stir the pecans in with a wooden spoon
when the timer goes off pour the pecan filling over the hot cookie base
bake another 15-20 minutes or until the pie filling is cooked and evenly brown, when you pull it out of the oven check to see the jiggle if it sloshes around you need to cook it another 5 minutes
cool completely before cutting, you can cut it as small as one-inch pieces or larger coffeehouse size bars