5 cups white sugar
1 cup butter
1 cup whole milk(don't sub skim or reduced fat)
1 TB pure vanilla extract
6.5 oz mini marshmallows (or large ones, torn up)
10 oz 60% cacao chocolate chips
2 1/2 cups powdered sugar
3/4 cup Pecan flavored Whiskey (I used Revel Stoke, Pie Hole would be good too)
1 cup chopped pecans (optional)
Foil and butter a 15x10 rimmed baking sheet (for thicker slices you can go to a 9 x 13 baking dish if you like)
Whisk together whiskey and powdered sugar, set aside
In a large heavy bottomed pot combine white sugar, butter, milk and vanilla.
Heat over medium high heat, stirring constantly until it is all melted together. When it reaches a boil clip a candy thermometer to the side and boil and stir until it reaches 237 degrees (about 2 mins 45 seconds from my timer)
Remove from heat, add in chocolate chips and marshmallows and stir until fully melted and no lumps remain.
Stir 3 minutes until it starts to just slightly thicken.
Add in whiskey/sugar and pecans if using and stir until just combined. (I like my fudge smooth so I skipped the pecans)
Pour into prepared sheet.
Chill completely in the fridge. Allow 24 hours before slicing.
Lift from the pan by the foil and peel back.
Slice into squares, I got 60 squares with the 15 x10 pan