Fudgy Spider Web Olive Oil Brownies made with rich black cocoa powder and extra-virgin olive oil! These spooktacular brownies are loaded with bittersweet chocolate chips and decorated with a marshmallow web and edible candied eyeballs for the perfect Halloween treat!
Set a rack in the center of the oven and set to 350ºF (180ºC).
Line a 9x9 inch square pan with parchment paper, leaving a 1-inch overhang for easy removal. Set aside.
Make Olive Oil Brownies - Fill a medium saucepan with 1–2 inches of water and bring to a simmer.
Add extra-virgin olive oil, 8 ounces of chopped dark chocolate, black cocoa powder and espresso powder into a medium sized heatproof bowl and place it over the pot of simmering water. Heat until chocolate has melted and the mixture is smooth. Using a kitchen towel, carefully remove the bowl from the simmering water and set aside to cool.1 Cup + 1 Tablespoon (210g) Extra-Virgin Olive Oil8 Ounces (227g) Dark Chocolate Bar⅔ Cup (56g) Black Cocoa Powder2 Teaspoons Fine Espresso Powder
In a large mixing bowl, add white sugar, brown sugar, 3 eggs, 1 yolk and vanilla. With an electric mixer, whisk on high speed for 5 to 6 minutes. Mixture should be pale in color and thick.1 Cup (200g) White Sugar½ Cup (100g) Brown Sugar3 Large Whole Eggs + 1 Yolk1 Tablespoon Vanilla Extract
Pour cooled chocolate mixture into the sugar/egg mixture and mix until combined.
Sift in the flour and salt and gently mix until there are very few flour streaks left.¾ Cup (90g) All-Purpose Flour1 Teaspoon Fine Sea Salt
Add chocolate chips and gently fold into the batter.1 ½ Cups (255g) Chocolate Chips
Transfer batter to prepared baking pan and bake for 35 to 38 minutes. Do not overbake! Allow to cool completely at room temperature or in the fridge.
To Decorate - Melt 1 cup of marshmallows in the microwave for about 20 to 30 seconds. It will puff up and become soft. Let stand for a minute and then use your fingertips to grab the melted marshmallow and pull it apart to make a web effect. Drape across the brownies and repeat until the top is covered (see note below). Add edible eyeballs. Slice and enjoy!1 Cup (45g) Mini Marshmallows
Notes
For the Marshmallow - You'll want to work quickly when working with the melted marshmallow. As it cools, it's harder to work with. You can pop it back in the microwave for 10 to 15 seconds to soften it again.
You can drape the marshmallow web on top of the brownies before or after you cut them in pieces.
Keyword chocolate brownies, double chocolate brownies, extra virgin olive oil, halloween brownies, mummy brownies, olive oil brownies, spider web brownies
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