These small batch brownies bake in a 6-inch pan to give you nine thick squares with a shiny, crackly top and a dense, fudgy center. For the best texture and flavor, the brownies are made with one egg, along with oil and butter, plus melted chocolate and cocoa powder. The scaled-down recipe means there’s plenty for two, without piles of leftovers to go stale on the counter.

Fudgy inside of a brownie square surround by crinkly top brownies.

A Brownie Built For Fudge Lovers

Brownies can be a polarizing dessert. Some love a softer, cake-like texture. Others prefer a dense and fudgy brownie, and that’s exactly what these are.

These brownies have all the quintessential features of what I think a brownie should be: moist and thick centers that can pass as candy, paper-thin crackly tops, toothsome edges, and unmistakable chocolate flavor.

As easy as it may seem to make a smaller batch of brownies, there is some finesse involved. I should know — I tested this recipe a lot, from mixing technique to ingredients and ratios.

And the result is a brownie recipe I stand behind (and happens to be the backbone of my raspberry brownies and skillet brownie for two). It delivers strong chocolate flavor in a brownie that stays chewy for days. Because nobody likes a dry, flavorless brownie.

Small Batch Brownie Testing (And Why It Matters)

I wanted to develop a small batch brownie recipe that relied on one whole egg. The yolk delivers fat content and moisture, contributing to the fudgy texture. And the white carries protein to support the brownie structure.

The remaining ingredients and ratios were built around that one egg. The early test batches tasted and looked right at first glance. A glossy top, but the batter kept creeping up and over the edges. And the centers … well, they were sad and thin.

Popular advice for brownies says to whip your egg and sugar to ribbon stage (pale, thick, holds its shape when it falls off the whisk). That’s the right call for a full-size pan, where there’s enough batter to structurally support all that aeration.

But in a small batch brownie batter, there isn’t enough mass. And tweaking other ingredient ratios will throw off the brownie’s texture entirely (translation: dry brownies). When I whipped to ribbon stage, the centers rose right along with the whipped egg, then caved in the moment the structure couldn’t hold itself up.

Sunken brownies example when used ribbon stage eggs. — Small batch brownies test: egg and sugar whipped to ribbon stage caused the brownies to sink.

💡 Once I took a step back and whisked the egg and sugar only until foamy, everything changed. The two work together to dissolve the sugar and, when slightly aerated, give the brownies their shatter-when-you-bite tops, and the inside stays thick and rich. It’s a small difference in technique (I also use it for my fudgy almond flour brownies) and the whole reason this recipe works the way it does.

Shiny top brownies with papery thin crust studded with chocolate chips.

Four ingredients, Four Different jobs

Cocoa powder – I use Dutch for deep flavor (but natural can be swapped in). Not only does it add flavor, but since it’s a dry ingredient, it builds on the brownie structure along with the flour. Too much, and it can tip things to the dry and cakey side.
Chocolate chips – More flavor and sweetness, but they are made with cocoa butter. Which when melted and then cooled, it firms up to give you that chewy bite.
Oil – Any neutral oil is what will give the brownies their sought-after fudgy texture that stays that way for up to a week.
Melted butter – One of my favorite ways to add rich flavor, but the butter also contains fat and water to support the brownie’s structure. An all-butter brownie won’t stay as soft as long as one made with oil.

Small batch brownies topped with chocolate chips cut into squares and piled on a white plate.

How To Make Small Batch Brownies

First, and most important, add the egg, sugar, and vanilla to a medium mixing bowl. Whisk by hand until the mix is light and foamy (this is the foamy stage I talked about). Let it sit while you prep the remaining ingredients to give the sugar a little time to dissolve.

Egg and sugar mixed until foamy in a mixing bowl with a whisk.

In another small bowl, add the butter, oil, and chocolate chips. Use a microwave or double boiler to melt the chocolate. Just be careful not to heat it too long, or it will seize up. And if there are little bits of chocolate left, that’s ok. They’ll melt with the residual heat.

Let the chocolate cool slightly before adding it to the egg-sugar mixture and stir until all the light streaks are gone.

To add the dry ingredients, you can whisk them together in another bowl. Or, save that bowl and set a mesh strainer directly over the bowl of wet ingredients. This will remove lumps that tend to form in the cocoa powder.

Dry ingredients for brownies being sifted into a mixing bowl.

Mix the batter until it is thick and sticky, and you don’t see flour streaks. From here, you can add chocolate chips to the batter for a little bite. Or do like I do, and save them to sprinkle on top. A few will sneak their way into the center as the brownies bake.

Thick brownie batter being mixed in a bowl with a pink spatula.

Use A 6-Inch Pan To Bake The Brownies

You’ll see some small batch brownie recipes that use a loaf pan. But I prefer a 6-inch square cake pan to bake thicker brownies. A 9×5 loaf pan is actually bigger in volume, thus yielding a thinner brownie with this amount of batter.

Also, the square pan will give you even brownie squares when cut. I usually cut mine into 2-inch squares, which will get you 9 brownies. But the size and shape are totally up to you. Cut them into 4 larger squares so everyone gets a brownie corner!

Erin’s Brownie Tips

Brownies like to stick to the pan when baked, so line the pan fully with parchment and grease any exposed edges.
Lighter-colored metal pans conduct heat better for even baking and texture.
Test if the brownies are done with a toothpick inserted in the middle. If it comes out fully coated in batter, keep baking and check again until the toothpick comes out with a few moist crumbs. Don’t overbake. A dry toothpick means a dry brownie.
Warm brownies will be crumbly. Let them cool completely so they set into their fudgy texture, and they will be easier to cut into clean squares.