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close up a slice of a lunch lady brownie with glossy frosting on top

Lunch Lady Brownies

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5 from 1 review

  • Author: Jenna Barnard
  • Total Time: 1 hour 35 minutes
  • Yield: 24 brownies


These lunch lady brownies are extra fudgy and filled with nostalgia! They’re just like those thin and sweet brownies they would serve in the school cafeteria…only these are way better. And with sprinkles!


Lunch Lady Brownies

  • 1 cup (220g) unsalted butter, melted
  • 2 tbsp vegetable oil
  • 1/2 cup (50g) unsweetened cocoa powder
  • 1/2 tsp salt
  • 2 cups (265g) all purpose flour
  • 1 cup (200g) granulated sugar
  • 1 cup (200g) dark brown sugar, packed
  • 4 large eggs, room temp
  • 1 tbsp vanilla extract

Chocolate Frosting

  • 1/4 cup (55g) unsalted butter, softened
  • Pinch of salt
  • 1/4 cup (25g) unsweetened cocoa powder
  • 2 1/2 cups (270g) powdered sugar
  • 1/4 cup (55g) milk
  • 1 tsp vanilla extract
  • Rainbow sprinkles


Lunch Lady Brownies

  1. Preheat the oven to 350F and grease a 10×15 jelly roll pan or 9×13 baking pan.
  2. In a large bowl, whisk together the butter, oil, and cocoa powder.
  3. Stir in the salt, flour, and sugars.
  4. Whisk in the eggs and vanilla.
  5. Pour the batter into the prepared pan and spread it even.
  6. For the jelly roll pan, bake for 15-20 minutes. For the 9×13 pan, bake for 25-30 minutes.
  7. The brownies are done when the surface appears matte, bubbly, and the center is bouncy to the touch.

Chocolate Frosting

  1. Right when the brownies are pulled from the oven, make the frosting.
  2. In a bowl using a hand or stand mixer with the paddle attachment, mix together the butter, salt, and cocoa powder.
  3. Mix in the powdered sugar one cup at a time, followed by the milk and vanilla.
  4. Spread the frosting on the warm brownies and top with sprinkles.
  5. Allow the brownies to cool completely. Then slice and enjoy!
  • Prep Time: 30 minutes
  • Cooling Time: 45 minutes
  • Cook Time: 20 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American
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