Lunchbox brownies are the sturdy, fudgy squares that survive the trip to school and back: cacao nibs melted with coconut oil into a rich batter, studded with toasted pecans. They cut clean once cool and hold their crumb for days. Bake Sunday, pack all week.
Pro Tips for Success
- Line the pan with a foil sling and grease it well. It is the difference between clean squares and a crumbled batch.
- Microwave the coconut oil and cacao nibs slowly, stirring often, so the nibs melt smoothly without scorching.
- Cool the melted mixture slightly before whisking in the eggs. Warm batter scrambles.
- Bake until a toothpick comes out with just a few moist crumbs, 22 to 27 minutes. Dry crumbs mean dry brownies.
- Cool completely in the pan, about 2 hours, before cutting. Warm brownies fall apart long before the lunchbox.
Frequently Asked Questions
How long do lunchbox brownies keep?
Up to 5 days in an airtight container at room temperature. Their sturdy crumb is exactly why they are named for the lunchbox.
Can I leave out the nuts?
Absolutely. Sprinkle the top with extra chopped cacao nibs instead, or leave them plain for nut-free lunchboxes.
Can I freeze them?
Yes. Cut the cooled squares, wrap them individually, and freeze for up to 2 months. They thaw by lunchtime.
Are these brownies paleo?
Yes. Cacao nibs, coconut oil, almond flour, palm sugar, eggs, and pecans: grain-free, dairy-free, and lunchbox-tough.

Ingredients
Method
- 1.
- Adjust oven rack to the middle position and heat the oven to 350°F.
- Line an eight-inch square baking pan with a foil sling and grease foil with coconut oil.
- Heat 8 tablespoons coconut oil and cacao nibs together in the microwave, stirring often, for 1 to 3 minutes or until melted.
- Let the mixture cool slightly.
- 2.
- In a medium bowl, whisk together the flour, baking powder, and salt.
- In a separate large bowl, whisk together the palm sugar, eggs, and vanilla.
- Whisk in the melted cacao nibs mixture until combined.
- Stir in the flour mixture until just incorporated.
- 3. Scrape the batter into the prepared pan, smooth the top, and sprinkle with the toasted nuts.
- Bake the brownies until a toothpick inserted into the center comes out with just a few moist crumbs attached (22 to 27 minutes), rotating the pan halfway through baking.
- 4.
- Let the brownies cool completely in the pan, set on a wire rack (about two hours).
- Cut the brownies into squares, remove from the pan, and serve.



