Preheat oven to 325 and line a 9x13 pan with parchment paper.
Using a microwave-safe bowl, melt ounces of chocolate. Microwave for 30 seconds then stir. Return to the microwave and heat for 15 seconds. Remove and stir. Continue to heat in 15-second increments until it is fully melted and silky. Set aside to cool slightly, not all the way.
8 ounces semi-sweet baking chocolate
Mix powdered sugar, sugar, flour, cocoa powder, and salt in a large bowl. Whisk until fully combined and there are no lumps.
3 cups powdered sugar, 1 cup sugar, 1 1/2 cup flour, 1/2 cup cocoa powder, 2 tsp salt
In a small bowl mix eggs, oil, water, and vanilla.
1 cup oil, 1/2 cup water, 2 tsp vanilla
Add the wet ingredients to the dry ingredients and mix just until you see no dry patches.
Fold in the melted chocolate until just combined.
Transfer the batter to the prepared pan, spreading the batter evenly throughout the pan.
Bake in preheated oven for 45 minutes or until a toothpick can be inserted with just a few crumbs sticking to it.
Allow to cool for twenty minutes until just slightly warm to the touch to set. Remove from pan to cool completely.
Once cooled, cut brownies into 12 equal rectangles.
Press one candy eye into the right long side of each brownie about halfway down. Leave enough space to draw a circle around the eye.
12 candy eyeballs
Draw a circle around each candy eye with black decorating icing or gel.
black decorating icing or gel
Use black icing to draw short horizontal lines like a book seam on the long side opposite the candy eye.
Add half circles to each corner above and below the eye. Draw additional vertical lines or swirls to add more character to your spell book brownie.
Notes
Store the brownies at room temperature in an airtight container for up to five days. If they’re not eaten by then (guessing they will be), toss any remaining brownies. Or give them away so someone can enjoy these delicious Halloween treats!Test the icing out on a piece of wax or parchment paper before you start icing the brownies. Sometimes store-bought icings can get a bit watery and that needs to be removed before icing. Same thing with melted chocolate, make sure to squeeze out any excess chocolate clumps to make sure you can get one smooth frosting line.Store in a cool place (but not the fridge) if you use melted chocolate into of black icing. If you store them in a warm place, the melted chocolate has a tendency to melt or smear easily.