Prep the brownie batter
Preheat oven to 325° F/162° C. In a medium bowl, mix together ingredients until well combined. Spread 1-cup batter onto baking sheet lined with Silicone Baking Sheet with Rim.
Bake & Serve
Bake 20–25 minutes. Allow to cool completely before breaking into large pieces (without cutting directly on Mat). Repeat with remaining batter. Serve warm or store in liquid tight container until ready to eat.
18-oz./510 g Box brownie mix
per box instructions Egg, oil & water