If the dead vampire chosen for this formula is not old enough to turn to ash, it must be reduced to ashes by fire. Afterward, the vampire's ashes are combined in a vessel that can sustain the extreme heat of the fire and aluminum filings and mixed with the alchemist's blood. The alchemist must then make a number of Intelligence + Science challenges equal to the alchemist's dots in Thin Blood Alchemy plus the number of dots of Blood Potency the dead vampire possessed. Each win or tie on these challenges yields one single dose of Ashe. Consuming Ashe takes a simple action and can only be done by a thin-blood. Doing so allows the user to succeed in her next Rouse Check automatically, provided it occurs within the next 30 minutes. To learn this formula, a character requires two dots in the Ashfinders Loresheet or they must be a thin-blood receiving instruction from someone who possesses the formula.

A vampire's ashes (or remains, which will be burned to ash in the process), an open flame reaching 1800 degrees Fahrenheit, and aluminum filings.