How to Make It
Place all the dry ingredients in a large mixing bowl and stir to combine.
Combine all the wet ingredients expect for the mayonnaise in another bowl. Add the wet ingredient mixture to the dry ingredients while whisking to incorporate. (Whisking will help keep the dry ingredients from clumping.) Add the mayonnaise and whisk until it’s incorporated.
Store in a jar with tight-fitting lid and refrigerate. It will keep for up to 2 weeks.
Excerpted from Buxton Hall Barbecue's Book of Smoke by Elliott Moss. Copyright © 2016 Quarto Publishing Group USA Inc.