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Freshly sliced Lunch Lady Brownies with chocolate frosting on a white plate

Lunch Lady Brownies

Lunch Lady Brownies are rich, fudgy, and topped with a luscious chocolate frosting. A nostalgic school cafeteria treat made easy for your kitchen!
Prep Time 15 minutes
Cook Time 30 minutes
Cooling Time 15 minutes
Total Time 45 minutes
Course Dessert, Snack
Cuisine American
Servings 16 brownies
Calories 310 kcal

Equipment

  • 9x13-inch Baking Dish
  • Parchment Paper
  • Stand Mixer or Hand Mixer
  • Mixing Bowl
  • Spatula

Ingredients
  

Brownies

  • 1 cup Salted Butter melted
  • 0.5 cup Unsweetened Cocoa Powder
  • 2 cups All-Purpose Flour
  • 2 cups Granulated Sugar
  • 4 large Eggs
  • 4 teaspoons Vanilla Extract

Chocolate Frosting

  • 0.25 cup Salted Butter softened
  • 0.25 cup 2% Milk
  • 0.25 cup Unsweetened Cocoa Powder
  • 3 cups Powdered Sugar

Instructions
 

  • Preheat your oven to 350°F (175°C). Line a 9×13-inch baking dish with parchment paper and spray it with non-stick spray.
  • In a stand mixer bowl, combine melted butter and cocoa powder. Blend using the paddle attachment until smooth.
  • Add flour and sugar to the mixture. Beat until just combined.
  • Add the eggs and vanilla extract. Mix until fully incorporated, but do not overmix. Batter will be thick.
  • Pour batter into prepared baking dish and spread evenly. Bake for 25 to 30 minutes, or until a toothpick inserted in the center comes out clean.
  • Remove brownies from the oven and let them rest for about 15 minutes. They should still be warm before frosting.
  • While brownies cool, beat all frosting ingredients together until smooth.
  • Pour and spread the frosting over the warm brownies. Let them cool completely before cutting into squares and serving.

Notes

For extra fudgy brownies, slightly underbake by 2-3 minutes. Store leftovers in an airtight container at room temperature for up to 3 days, or refrigerate for up to a week. These also freeze beautifully—just wrap tightly and thaw at room temp.
Keyword brownies, chocolate dessert, fudgy brownies, lunch lady brownies, school brownies