Make your brownie mix -- you can make it sugar-free even if you want!
Wash hands with soap and water. Ensure worksurface is clean.
Mix all well.
Store in tightly-sealed 2 litre / quart jar, in a cool, dark place for best storage life.
Regard raw flour as you would raw meat and after preparing recipe, wash hands and any surfaces that may have come into contact with it.
Brownie Mix DIY. www.healthycanning.com