“Gourmet Goo” Skillet Brownies

The magic really happens in the oven as the ingredients bake up into a gooey, sweet wonder.


one 9-inch
23 cm brownie


8 to 12

Prep Time:

10 minutes

Cook Time:

25 to 30 minutes


About this Recipe


Recipe from Baking Day with Anna Olson, Appetite by Random House, 2020

I started play-baking before I was old enough to understand what a recipe was. When I asked to help in the kitchen, my mom would pull out random ingredients that usually included day-old bread, eggs, sugar, milk and chocolate chips. I could mix them any way I chose, and Mom would bake the concoction up as I parked myself in front of the oven to watch. Naturally, Mom would pronounce the dish delicious upon the first bite (was there even a second?), naming it “Gourmet Goo.” That gesture of love and patience has inspired this mess of a warm brownie, which is perfect for learning how to mix, stir, crack eggs and more, and is forgiving if the measurements aren’t precise. The magic really happens in the oven as the ingredients bake up into a gooey, sweet wonder.

warm pizza dip


  • ½ cup (115 g) unsalted butter
  • 4 oz (120 g) dark couverture/baking chocolate, chopped
  • 1 cup (200 g) granulated sugar
  • 2 large eggs, room temperature
  • 1 tsp vanilla extract
  • 1/3 cup (50 g) all-purpose flour
  • ¼ cup (30 g) cocoa powder
  • ½ tsp fine salt
  • ¼ tsp baking powder
  • 1½ cups (375 mL) coarsely chopped sweet treats, such as cookies, candies, chocolate bars, chocolate chips, etc.
  • 10 to 12 large marshmallows, cut in half
  • Warm chocolate fudge sauce and/or butterscotch sauce, for serving
  • Vanilla ice cream, for serving
NOTES: Just like my mom, you can pull out a bit of this and a bit of that to make the “sweet treats” that are stirred into the brownie batter. After Halloween, this recipe makes great use of leftover candy.

Step by Step Instructions

Step 1

Preheat the oven to 350°F (180°C). Grease a 9-inch (23 cm) skillet or round baking pan well.

Step 2

Melt the butter and chocolate together in a small saucepan over low heat, stirring constantly until smooth (or melt the two together in the microwave, stirring every 10 seconds). Transfer to a large bowl.

Step 3

Whisk in the sugar, followed by the eggs one at a time, and the vanilla. Sift in the flour, cocoa powder, salt and baking powder and add all at once, stirring until blended. Stir in 1 cup (250 mL) of the sweet treats and then scrape into the skillet or pan, spreading to level it.

Step 4

Bake the brownie for 20 to 25 minutes, until the edges lift up and the top of the brownie loses its shine. Remove the brownie from the oven and increase the heat to 400°F (200°C). Arrange the marshmallows and remaining ½ cup (125 mL) of sweet treats on top of the brownie and return to the oven for about 5 minutes to brown the marshmallows.

Step 5

Let the brownie cool in the pan on a rack for 15 minutes before drizzling with warm fudge and/or butterscotch sauce and spooning into bowls to serve with a scoop of ice cream. While best served warm, these brownies can be cooled in the pan (do not top with sauce), cut into squares and stored in an airtight container at room temperature for up to 3 days.