Line an 8 x 8 inch pan with foil and spray with non stick spray
Combine milk, butter, sugar and glucose in a pat and heat on medium heat until sugar dissolve, stirring frequently
Turn up the heat to medium high and cook for another 10-15 mins, stirring continuously until thickens and change into caramel color, remove from heat
Add in chocolate and Jack Daniel's, stir until melted and smooth
Pour into prepared pan, smooth surface and let cool to room temperature before chilling in the fridge for at least 2 h
Slice into 1 inch squares and enjoy :)