1Add 1/2 stick of butter, 3/4 cup packed brown sugar, 1/2 tsp cinnamon, 1/2 tsp all spice, 1/8 tsp nutmeg and 1/4 cup agave nectar into a small bowl and whip together until very smooth
2Add 1 oz of the butter mixture into a mug
3Pour in 2 oz of whiskey
4Pour in 2 oz of hot water and stir until butter mixture is melted