Preheat oven to 350 degrees F. Line an 8 x 8-inch baking pan with parchment and grease with cooking spray. Set aside.

In a medium bowl, combine together the flour, cocoa powder, and salt.

Place the chocolate and butter in a small saucepan and melt over low heat until melted and smooth. You can also do this in the microwave, stirring after 30 second intervals until melted. Stir in the beer, vanilla and coffee.

In a separate medium bowl, whisk together eggs and sugars until thick, about 2 minutes. Add the chocolate mixture and whisk to combine. Add the wet ingredients to the dry ingredients and stir until all of the ingredients are just combined.

Pour into the prepared pan and bake for 30 to 35 minutes or until the edges are firm and the center is set. Remove from the oven and allow to cool completely before crumbling. If desired, you can poke the brownies all over with a fork and then drizzle with bailey's and/or whiskey for an extra kick. You should only need to use 2/3 of the brownies for the cheesecakes, so feel free to snack!

In a medium mixing bowl cream together the cream cheese, sweetened condensed milk, Bailey's and vanilla. Set aside.

in a microwave safe bowl add the chocolate and heavy cream. Microwave on high for 30 second intervals, stirring between each until melted. Once melted stir in the Bailey's and a pinch of salt. Set aside.

Use and electric mixer to whip the cream until soft peaks form. Add the powdered sugar and whiskey, whip until combined.

Grab 6-8 serving glasses. Crumble a few brownies and divide them among the bottom of the glasses. Top the brownie layer with a layer of cheesecake and then a thin layer of ganache. Repeat the layers until you have reached almost to the top of the glass. If your glasses are small (6-8 ounces) you really do not need to create layers. Just do a thick layer of brownie + cheesecake and you should be pretty close to the top of the jar. Top each glass with a thick layer of whipped cream. Store in the fridge until ready to serve. Drizzle with any remaining ganache just before serving.