Slice and Bake Halloween Cookies

all-purpose flour ((4 1/4 cups) )

salt

cold unsalted butter (cubed)

granulated sugar ((1 ¾ cups))

vanilla extract

large eggs

black gel food coloring ((I used Americolor Super Black))

purple gel food coloring ((I used Americolor Electric Purple and Regal Purple))

egg white

small Halloween cookie cutters ((I used Fox Run’s Halloween cookie cutter set))

black sugar sprinkles