Craving the crackly edges of brownies in every bite? Brownie brittle delivers exactly that: thin, crisp, deeply chocolatey shards that are simple to make and seriously addictive. It bakes up fast, cools quickly, and keeps well—perfect for snacking, gifting, or crumbling over ice cream.
If you love the rich flavor of brownies but prefer a lighter, crunchier texture, this recipe will become a staple. No mixer needed, just a whisk, a bowl, and a baking sheet.
Ingredients
Method
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Prep the pan. Heat your oven to 325°F (165°C). Line a rimmed half-sheet pan with parchment paper.
Lightly spray or brush the parchment with oil so the brittle releases cleanly.
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Whisk the wet ingredients. In a large bowl, whisk the granulated sugar, brown sugar, and oil until glossy. Add the egg, egg white, and vanilla. Whisk until smooth and slightly thickened.
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Combine the dry ingredients. In a separate bowl, whisk the flour, cocoa, salt, and baking powder.
Break up any cocoa lumps so the batter stays smooth.
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Make the batter. Add the dry ingredients to the wet and stir with a spatula until just combined. Fold in the mini chocolate chips and nuts, if using. The batter will be loose and shiny—this is right.
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Spread very thin. Pour the batter onto the parchment-lined pan.
Using an offset spatula, spread it to a thin, even layer, about 1/8 inch thick. Leave a small 1/2-inch border so it doesn’t overflow. Sprinkle with a pinch of flaky sea salt if you like sweet-salty flavor.
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Bake until set and crisping at the edges. Bake for 18–24 minutes.
Look for a matte surface with slightly darker edges and small bubbles. If you like extra crisp, bake on the longer side, but don’t let it scorch.
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Score while warm (optional). If you prefer tidy pieces, use a knife or pizza cutter to lightly score lines immediately after removing from the oven.
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Cool completely on the pan. Let it sit 15–20 minutes. It will firm up as it cools.
Once crisp, break into shards or along your scored lines.
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Finish and enjoy. Taste a piece. If you want more salt or sweetness, a light dusting of flaky salt or powdered sugar can balance it nicely.
Why This Recipe Works
- Thin batter spreads evenly to create that signature crispy, crackly texture without turning cakey.
- Oil instead of butter keeps the brittle light and crisp while still delivering a fudgy chocolate taste.
- Low moisture + low baking powder encourages crispness rather than rise, so it stays thin and snappy.
- Chocolate chips and cocoa pack in rich flavor without making the batter thick or heavy.
- Cool-down time on the pan helps it harden fully for clean breakable pieces.
Ingredients
- 1 cup granulated sugar
- 1/3 cup light brown sugar, packed
- 1/2 cup neutral oil (canola, vegetable, or light olive)
- 1 large egg
- 1 large egg white
- 1 teaspoon vanilla extract
- 1/2 cup all-purpose flour, spooned and leveled
- 1/2 cup unsweetened cocoa powder (natural or Dutch-process)
- 1/2 teaspoon fine sea salt
- 1/4 teaspoon baking powder
- 1/2 cup mini chocolate chips
- Optional: 1/4 cup finely chopped nuts (pecans or almonds)
- Optional: Flaky sea salt, for topping
How to Make It
- Prep the pan. Heat your oven to 325°F (165°C). Line a rimmed half-sheet pan with parchment paper.
Lightly spray or brush the parchment with oil so the brittle releases cleanly.
- Whisk the wet ingredients. In a large bowl, whisk the granulated sugar, brown sugar, and oil until glossy. Add the egg, egg white, and vanilla. Whisk until smooth and slightly thickened.
- Combine the dry ingredients. In a separate bowl, whisk the flour, cocoa, salt, and baking powder.
Break up any cocoa lumps so the batter stays smooth.
- Make the batter. Add the dry ingredients to the wet and stir with a spatula until just combined. Fold in the mini chocolate chips and nuts, if using. The batter will be loose and shiny—this is right.
- Spread very thin. Pour the batter onto the parchment-lined pan.
Using an offset spatula, spread it to a thin, even layer, about 1/8 inch thick. Leave a small 1/2-inch border so it doesn’t overflow. Sprinkle with a pinch of flaky sea salt if you like sweet-salty flavor.
- Bake until set and crisping at the edges. Bake for 18–24 minutes.
Look for a matte surface with slightly darker edges and small bubbles. If you like extra crisp, bake on the longer side, but don’t let it scorch.
- Score while warm (optional). If you prefer tidy pieces, use a knife or pizza cutter to lightly score lines immediately after removing from the oven.
- Cool completely on the pan. Let it sit 15–20 minutes. It will firm up as it cools.
Once crisp, break into shards or along your scored lines.
- Finish and enjoy. Taste a piece. If you want more salt or sweetness, a light dusting of flaky salt or powdered sugar can balance it nicely.
Storage Instructions
- Room temperature: Store in an airtight container for up to 1 week. Add a small packet of silica gel or a few grains of uncooked rice wrapped in a paper towel to keep it dry and crisp.
- Freezer: Freeze in a sealed bag for up to 2 months.
Thaw uncovered at room temperature so moisture doesn’t soften it.
- Re-crisping: If it softens, spread pieces on a sheet pan and warm at 300°F (150°C) for 5–7 minutes, then cool completely.
Benefits of This Recipe
- Quick and simple: One bowl, no mixer, and a short bake time.
- Flexible add-ins: Try nuts, mini chips, crushed espresso beans, or toffee bits.
- Great for gifting: Packs beautifully in bags or tins and stays crisp when sealed.
- Versatile use: Serve as a snack, crumble over ice cream, or layer into parfaits.
- Budget-friendly: Uses pantry staples and small amounts of each ingredient.
What Not to Do
- Don’t spread it thick. A thicker layer turns chewy or cakey instead of crisp.
- Don’t skip lining and greasing the pan. It will stick, and you’ll lose those nice, clean shards.
- Don’t overbake to the point of bitterness. Dark edges are fine; a burnt smell means stop.
- Don’t cut while fully cool without scoring. If you want neat squares, score while warm or you’ll get random shards.
- Don’t store with moisture-prone items. Keep it away from fresh fruit or humid environments.
Alternatives
- Gluten-free: Use a 1:1 gluten-free all-purpose flour blend. Spread thin and bake as directed.
- Dairy-free: This recipe is already dairy-free if you use dairy-free chocolate chips.
- Espresso brownie brittle: Add 1–2 teaspoons instant espresso powder to the dry ingredients for deeper chocolate flavor.
- Salted almond brittle: Fold in 1/4 cup finely chopped roasted almonds and finish with flaky salt.
- Mint chocolate: Add 1/4 teaspoon peppermint extract and swap half the chocolate chips for crushed mint candies.
- Cocoa swap: Dutch-process cocoa gives a smoother, darker flavor; natural cocoa tastes a bit brighter. Both work.
FAQ
Can I use butter instead of oil?
Yes, but the texture shifts slightly.
Melted butter gives richer flavor and a touch more tenderness. If using butter, measure 1/2 cup melted and slightly cooled. Expect a tiny bit less crispness than with oil.
Why is my brownie brittle soft in the middle?
It was likely spread too thick or underbaked.
Next time, spread thinner and bake until the surface looks matte with crisp edges. You can also return soft pieces to a 300°F (150°C) oven for a few minutes to re-crisp.
How do I keep it from sticking?
Line your pan with parchment and lightly grease it. Avoid wax paper—it can melt.
Also let the brittle cool fully before lifting; it releases more easily once firm.
Can I double the recipe?
Yes. Use two sheet pans and bake on separate racks, rotating halfway through. Keep the layers thin on both pans.
If the oven is crowded, add a couple of minutes to the bake time.
What’s the best way to get neat squares?
Score the brittle with a knife or pizza cutter right after it comes out of the oven. Don’t press all the way through—just mark lines. Break along the lines once cool.
Is Dutch-process cocoa okay?
Absolutely.
This recipe has enough leavening to work with either Dutch-process or natural cocoa. Dutch-process will taste smoother and darker.
Can I reduce the sugar?
A small reduction is fine, but sugar helps crispness. You can cut the granulated sugar by up to 2 tablespoons without losing too much snap.
Any more and the texture may turn leathery.
In Conclusion
Brownie brittle gives you the best part of brownies—the crackly, chocolatey edge—in every bite. It’s quick, pantry-friendly, and easy to customize. Keep a batch on hand for snacking, crumbling over desserts, or packing into lunchboxes.
Once you master the thin spread and the bake time, you’ll have a reliable, crispy treat whenever a chocolate craving hits.
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