Go Back
Delicious Letterbox Brownies

Letterbox Brownies

These delicious letterbox brownies are a warm, fudgy hug packed into a box, ready to surprise someone you care about. This straightforward recipe relies on simple, quality ingredients to create a memorable, deeply chocolatey flavor with a perfect fudgy texture that holds up well for travel, making it an ideal homemade gift.
Print Recipe Pin Recipe
Prep Time 15 minutes
Cook Time 25 minutes
Total Time 40 minutes
Servings: 12 servings
Ingredients Equipment Method Notes

Ingredients
  

Ingredients
  • 1/2 cup (113g) unsalted butter
  • 1 cup (200g) granulated sugar
  • 2 large eggs, at room temperature
  • 1 teaspoon vanilla extract
  • 1/3 cup (30g) unsweetened cocoa powder
  • 1/2 cup (60g) all-purpose flour
  • 1/4 teaspoon salt
  • 1/4 teaspoon baking powder

Equipment

  • 8-inch square pan
  • parchment paper
  • medium saucepan
  • spatula
  • Wooden spoon
  • wire rack
  • toothpick

Method
 

Instructions
  1. Prepare Your Pan and Oven: First things first, preheat your oven to 350°F (175°C). Take your 8-inch square pan and grease it well with butter or a non-stick spray. For extra insurance and easy removal, I recommend lining the pan with parchment paper, leaving a little overhang on two sides to act as handles.
  2. Melt Butter and Mix Wet Ingredients: In a medium saucepan, melt the unsalted butter over low heat. Once it's fully melted, remove it from the heat. Stir in the granulated sugar until it’s well combined. Then, add the room temperature eggs one at a time, followed by the vanilla extract. Mix until everything is smooth and glossy.
  3. Incorporate Dry Ingredients: Add the cocoa powder, all-purpose flour, salt, and baking powder directly into the saucepan with the wet ingredients. Use a spatula or wooden spoon to fold everything together gently. Stop mixing as soon as you no longer see dry streaks of flour. This is the secret to a fudgy texture!
  4. Spread and Bake: Pour the thick, rich batter into your prepared pan and use the spatula to spread it evenly into the corners. Place the pan on the center rack of your preheated oven.
  5. Bake to Perfection: Bake for 20 to 25 minutes. The edges should look set, and a toothpick inserted into the center should come out with moist crumbs attached, but not wet batter. Be very careful not to overcook, as this will dry them out.
  6. Cool Completely: This might be the hardest step! Let the brownies cool completely in the pan on a wire rack before cutting. This allows them to set properly, ensuring clean cuts and a perfect fudgy texture. Once cooled, you can lift them out using the parchment paper handles and slice them into squares, ready for your Valentines Cookie Boxes Diy.

Notes

For a perfect crackly top, beat eggs and sugar thoroughly. Avoid overmixing the batter after adding flour to keep the brownies fudgy. Cool brownies completely before slicing for clean cuts. Variations include adding espresso powder, nuts, chocolate chunks, or different extracts. This recipe can be doubled and baked in a 9x13-inch pan.