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Lunch Lady Brownies in a Sheet Pan

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Make a giant sheet pan filled with frosted lunch lady brownies for a chocolaty treat big enough to feed a crowd. They are easy to make the chocolate icing takes them to the next level of delicious.

Squares of frosted brownies stacked on top of each other ready to eat.

When you want a giant batch of frosted chocolate goodness, lunch lady brownies are just the thing. This big batch recipe is perfect for parties and potlucks because it makes plenty of chocolate goodness to share.

One of the best parts of those cafeteria brownies is a nice layer of chocolate frosting, so of course this recipe has that as well.

And both the brownies and the frosting are super simple to make. You can easily cut it onto 36 nice size servings or even more small squares and feed a crowd.

Making fudgier brownies

These cakey brownies will remind you of the school cafeteria in the best kind of way. For fudgier brownies, just leave out the baking soda.

Either way they are absolutely loaded with chocolate and taste amazing. The only difference is the final texture, so it depends if you like them airy or dense and gooey.

Punching up the chocolate flavor

These brownies are rich and chocolaty as written, but adding coffee makes that chocolate taste even better. Just substitute in coffee wherever you see water in the recipe.

Sheet pan filled with frosted lunch lady brownies.

I was tempted to do that myself, but figured real lunch ladies might shy away from adding coffee to elementary school desserts. The teachers would likely revolt if they found out the kids were being caffeinated at lunch!

Adding coffee won’t make the brownies taste like coffee, it will just boost the chocolate flavor. Though you could add coffee extract or concentrated coffee if you did want to go for a stronger coffee mocha flavor.

Storing leftover brownies

Brownies can be stored in an airtight container at room temperature for up to a week. If you find they start drying out, you can add a slice of sandwich bread to the container to help keep them soft longer.

For longer storage, wrap the extra brownies well and freeze for up to 3 months.

More great brownie recipes

We have been on a bit of a brownie roll lately. There are just so many fun ways to make them.

So if you aren’t looking to whip up a giant half sheet pan filled with frosted brownies, don’t despair. We have plenty of other recipes for you.

Lifting out first piece of lunch lady brownies from sheet pan.

If that coffee and brownie combination caught your interest, check out coffee and cream brownies. It is a much smaller batch, but the layers make them absolutely stunning.

For a slightly larger batch of sticky layered treats, make Mississippi mud brownies. They have marshmallow and chocolate goodness on top of the gooey brownies.

Or make your own homemade brownie mix and store it for later use. Or load it in a jar and give it as an easy edible gift.

Stack of frosted lunch lady brownies on plate in front of sheet pan.

Rhubarb brownies combine rich fudgy chocolate and brown butter batter with bits of fresh rhubarb. It may sounds like a strange combination, but trust me it works!

Layered monster brownies are the perfect combination of Graham cracker crust, rich chocolaty brownies and peanut butter for an extra special treat.

Love this recipe? Give it a ⭐⭐⭐⭐⭐ review in the recipe card below!

Yield: 36 Servings

Lunch Lady Brownies

Squares of frosted brownies stacked on top of each other ready to eat.

Make a giant sheet pan filled with frosted lunch lady brownies for a chocolaty treat big enough to feed a crowd. They are easy to make the chocolate icing takes them to the next level of delicious.

Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes

Ingredients

Brownies

  • 2 cups butter, melted
  • 4 cups granulated sugar
  • 1 cup cocoa powder
  • 4 teaspoons vanilla extract
  • 8 eggs
  • 3 cups flour
  • 1 teaspoon baking soda
  • 1 teaspoon salt
  • 2 cups chocolate chips

Frosting

  • 2/3 cup cocoa powder
  • 1/4 cup hot coffee or water
  • 1/2 cup soft butter
  • 1/4 cup milk
  • 1 teaspoon vanilla extract
  • 5 cups powdered sugar

Instructions

  1. Preheat oven to 350°F and spray a 13x18-inch sheet pan with cooking spray.
  2. Stir together melted butter, sugar, cocoa powder and vanilla. Add eggs one at a time, mixing well after each addition.
  3. In a separate bowl, mix together flour, baking soda and salt.
  4. Stir flour mixture into butter mixture. Fold in chocolate chips.
  5. Spread brownie mixture in prepared pan and bake for 25-30 minutes. Allow to cool.
  6. To make frosting, stir together cocoa powder and hot coffee or water. Set aside for a minute or two.
  7. Beat butter until smooth and fluffy. Add the cocoa mixture and mix until combined.
  8. Stir in powdered sugar and milk. Whip until smooth.
  9. Spread over cooled brownies.

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Nutrition Information:

Yield:

36

Serving Size:

1

Amount Per Serving: Calories: 377Total Fat: 17gSaturated Fat: 10gTrans Fat: 1gUnsaturated Fat: 6gCholesterol: 75mgSodium: 214mgCarbohydrates: 54gFiber: 2gSugar: 43gProtein: 4g

All nutritional information is estimated and will depend on the exact ingredients you use.

Did you make this recipe?

I'd love to see it! Share a picture on Instagram or Pinterest and tag me @carleecooks to let me know how it went!

Make a giant sheet pan filled with frosted lunch lady brownies for a chocolaty treat big enough to feed a crowd. They are easy to make the chocolate icing takes them to the next level of delicious.

Share with your friends!

Andrea Nine

Friday 26th of November 2021

Perfection in brownie form!!!!

Carlee

Saturday 27th of November 2021

Thank you!

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