Introduction
These cocoa brownies use 4 tbsp cocoa, a short 20-minute bake, and a simple stir-together batter for a thin, fudgy bar. You can mix them in one bowl, bake them in a 9 x 9 inch pan, and cut them into about 20 pieces for a party tray, lunchbox treat, or quick dessert.
Recipe Details
- Prep Time: 10 minutes
- Cook Time: 20 minutes
- Total Time: 30 minutes
- Servings: about 20
Ingredients
- 2 eggs
- 1 cup (6 ¾ oz / 2.4 dl) white granulated sugar
- ½ cup (4 ¼ oz / 120 g) melted butter or cream
- 4 tbsp cocoa
- ¾ cup (6 ¼oz / 180 g / 1.8 dl) flour
- ½ tsp salt
- ½ tsp baking powder
- 1 tsp vanilla
- ½ cup (4 ¼ oz / 120 g / 1.2 dl) chopped walnuts or other nuts (optional)
Instructions
- Preheat oven to 350°F (175°C). Grease a 9 x 9 inch (23 x 23 cm) square cake pan.
- Whisk eggs until light in a medium-sized bowl.
- Add sugar, melted butter, and cocoa. Mix well.
- Add flour, salt, baking powder, vanilla, and nuts. Mix well with a rubber spatula.
- Pour into prepared pan. Bake for 20 minutes at 350 °F/175 °C (Gas Mark 4).
- Cool.
Variations
- Use cream instead of melted butter for a slightly lighter, softer brownie with less richness.
- Leave out the chopped walnuts for a smoother texture and a cleaner cut if you want neat squares.
- Swap the walnuts for pecans or hazelnuts to change the flavor profile while keeping the same crunch.
- Bake the batter in an 8 x 8 inch pan instead of 9 x 9 for thicker brownies; the centers stay fudgier and the bake time will run a few minutes longer.
Tips for Success
- Whisk the eggs until they look lighter and slightly foamy; that helps the top set with a thin crust instead of staying dull.
- Mix the flour, salt, baking powder, vanilla powder, and nuts just until no dry streaks remain, or the brownies can turn tough.
- Grease the corners of the 9 x 9 inch pan well so the edges release cleanly after cooling.
- Check the brownies at 20 minutes; the center should look set but still slightly soft, and a tester should come out with moist crumbs, not wet batter.
- Cool fully before slicing or the brownies will crumble and smear when you cut them.
Storage and Reheating
Store the cooled brownies in an airtight container with parchment between layers. They keep at room temperature for 3 days or in the fridge for up to 1 week.
For longer storage, wrap pieces tightly and freeze them in a freezer-safe container or bag for up to 2 months. Thaw at room temperature before serving.
To reheat, microwave a piece for 10 to 15 seconds for a softer texture, or warm several pieces in a 300°F oven for 5 to 8 minutes.
FAQ
Can you use cream instead of melted butter?
Yes. The brownies will be a little less rich and slightly softer than the butter version.
Can you leave out the nuts?
Yes. The batter works fine without them, and the finished brownies will have a denser, more even texture.
Why do the eggs need to be whisked until light?
That step adds some air and helps the brownies bake with a lighter top and a less heavy texture.
Can you double the recipe?
Yes, but use a larger pan so the batter depth stays close to the original. If you bake in a 9 x 13 inch pan, start checking a few minutes before the 20-minute mark.
Attribution: Recipe text from “Cookbook:Cake Brownies” on Wikibooks (© Wikibooks contributors).
Source: https://en.wikibooks.org/wiki/Cookbook:Cake_Brownies
License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/
Additions: Editorial additions and formatting changes were made for clarity and usability. Ingredients, instructions, and other sections may be adapted where appropriate.

