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Close up of fudgy dark chocolate black cocoa spider web brownies with candy eyes on top.

Spider Web Brownies

Liz Mincin
Fudgy and intensely dark chocolate Spider Web Brownies! These rich black cocoa brownies are filled with dark chocolate chips and topped with easy marshmallow spider webs. Add some candy eyes for a eerie finishing touch!
5 from 1 vote
Prep Time 30 minutes
Cook Time 30 minutes
Cooling and Decorating 2 hours
Course Dessert
Cuisine American
Servings 16 brownies
Calories 280 kcal

Equipment

  • small saucepan and heatproof bowl A DIY double boiler - the bowl should fit snuggly on top of the pan. It shouldn't sit so deep into the bowl that it touches the bottom as you'll need a couple of inches spare for water, but it will need to sit far enough in that the base is well warmed. You will also need a small saucepan for the marshmallow topping.
  • large mixing bowl
  • whisk
  • Sieve
  • spatula
  • 8" square baking pan
  • Parchment paper

Ingredients
 
 

Ingredients for Black Cocoa Brownies

  • 12 oz dark chocolate chips 70% dark chocolate or semi-sweet chocolate will work here. The amount is divided in half in the recipe.
  • ½ cup oil flavorless oil such as canola oil or sunflower oil
  • 2 teaspoon vanilla extract
  • 2 large eggs ideally at room temperature
  • 1 egg yolk also at room temperature
  • ¾ cup all purpose flour or plain flour
  • ¼ cup black cocoa powder
  • ¼ teaspoon salt
  • ¼ cup powdered sugar or icing sugar
  • cup granulated sugar or caster sugar
  • ½ cup light brown sugar firmly packed

Ingredients for Marshmallow Webs and Decoration

  • 3 oz marshmallows mini or normal marshmallows will work here
  • edible candy eyes or other decorative candies

Instructions
 

  • Start by lining your square baking pan with parchment paper and pre-heating your over to 350°F.
  • Place half of your chocolate chips (6oz) into a heatproof bowl and set this over a saucepan of simmering water. This should fit snuggly. Avoid letting the water touch the base of the bowl, but allow this to carry on simmering on a medium-low heat on the stovetop while you melt the chocolate.
  • While the chocolate is melting, whisk the oil, vanilla, eggs and yolk together in a large mixing bowl.
  • Once the chocolate has melted smooth, let this cool for a couple of minutes and then slowly add to the egg mixture while whisking continuously. You want to avoid scrambling the eggs with too hot chocolate!
  • Next add the granulated and brown sugar to the mixture and sift the flour, powdered sugar, cocoa powder and salt into the mix. Stir this together with a spatula until just combined in a thick batter.
  • Add the remaining chocolate chips to the batter and fold to incorporate.
  • Spoon this into your lined baking pan and spread evenly.
  • Bake in the center of the preheated oven until a toothpick inserted in the center comes out mostly clean.
  • Remove and allow to cool completely in the pan for about an hour or two.
  • When the brownies are cool, melt the marshmallows in a small saucepan over a medium-low heat until smooth.
  • Remove from the heat and allow to cool for a few minutes until you are able to handle the marshmallow - it will be warm, but shouldn't be so hot to the touch that it burns!
  • Pinch a bit of melted marshmallow with one hand and then pinch this with your other, pulling the marshmallow apart. The stretching action will create a spider web effect. Drape this over your brownies letting it cling to the edges to hold in place. Repeat until you've added as much webbing as you like!
  • Top off with some edible eyes or other ghoulish candy decorations. Slice and serve!

Nutrition

Calories: 280kcalCarbohydrates: 34gProtein: 4gFat: 15gSaturated Fat: 7gPolyunsaturated Fat: 2gMonounsaturated Fat: 5gTrans Fat: 0.03gCholesterol: 33mgSodium: 74mgPotassium: 180mgFiber: 1gSugar: 23gVitamin A: 48IUVitamin C: 0.1mgCalcium: 78mgIron: 1mg
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