My First Lava Stone
I first tried these cookies in a tiny mountain town. A kind woman with flour-dusted hands gave me one. I bit into it and was amazed. It was light as air but tasted so deep and nutty. I still laugh at that moment.
I begged her for the secret. She just smiled and said, “It’s all in the crunch.” She meant the hazelnuts. You must toast them until they smell like heaven. Doesn’t that smell amazing? That smell is the heart of the cookie.
Why We Crackle and Cool
These cookies have two big secrets. First, you must chill the dough for hours. This matters because it lets the flavors get to know each other. They become friends in the cold.
The second secret is the meringue. Whisking those egg whites makes magic. It gives the cookie its lift. When the hot oven hits the cold dough, it goes wild. The cookie puffs up and then cracks, just like cooling lava rock.
A Pocket of History
Their real name is “Scories de Vulcans.” That’s French for “volcanic slag.” Bakers long ago were clever. They wanted a treat that looked like the rough stones from volcanoes. So they made these.
Fun fact: The “baker’s ammonia” in the recipe is an old-time leavener. It makes the cookies extra light and crisp! It’s why they feel so special. This matters because food can be a playful story. What’s the most interesting-looking food you’ve ever eaten?
Let’s Make Some Magic
Start with your hazelnuts. Toast them until golden. Let them cool completely. This step is not for rushing. Grind them coarse with some sugar. We want little bits for that perfect crunch.
Now, make your meringue. Beat the egg whites until they form soft peaks. This takes patience. Fold the nut mix into the fluffy whites gently. Then, the hard part. Tuck the bowl into the fridge and walk away. For hours! Do you think you can wait, or will you peek?
The Volcano Erupts
When it’s time to bake, heat your oven. Use two spoons to make rough little balls. They should look messy, like little stones. That’s perfect. Bake them and watch through the window.
They will puff and crack right before your eyes. It’s the best part. Let them cool on the pan. They will sing a tiny crackle song. When you bite one, it should be crisp outside, almost hollow inside. It’s a little wonder. What kitchen magic always feels special to you?

Ingredients:
| Ingredient | Amount | Notes |
|---|---|---|
| Hazelnuts | 2 cups | preferably peeled |
| Granulated sugar | ½ cup | |
| Cocoa powder | 1½ tablespoons | |
| All purpose flour | 1 tablespoon | |
| Baking powder | ¼ teaspoon | |
| Egg whites | 3 |
Lava Stone Cookies: A Sweet Little Eruption
Hello, my dear. Come sit. Let’s make Scories de Vulcans. That’s a fancy name for Lava Stone Cookies. They look like little volcanic rocks. I learned this from my friend Marie years ago. We still laugh at that. My grandson calls them “dinosaur cookies.” Isn’t that cute? They are crunchy, nutty, and not too sweet. The best part is hearing them crackle as they cool. It’s like a tiny kitchen volcano. Doesn’t that sound fun?
We start with hazelnuts. Toasting them is the secret. It wakes up their cozy flavor. You’ll smell it. It fills the whole kitchen with warmth. (My hard-learned tip: let them cool completely before grinding. Warm nuts turn into paste, and we want crunch!). Now, let’s begin our little baking adventure together.
Step 1: Heat your oven to 375°F. Spread the hazelnuts on a baking sheet. Toast them until they are golden. This takes about 10 minutes. Watch them closely. They can burn fast. I like to shake the pan once. It reminds me of popping corn.
Step 2: Let the nuts cool. Then grind them coarsely with half the sugar. We want little bits. Add the cocoa, flour, and baking powder. Pulse it just to mix. Now, whisk one egg white with the rest of the sugar. It will get foamy. Pour this into the nut mix. Pulse again for just a second.
Step 3: Now, whisk the last two egg whites. Beat them until soft peaks form. Add the last 2 tablespoons of sugar slowly. Keep beating. You want a stiff, shiny meringue. This gives the cookies their lift. What do stiff peaks look like? Share below!
Step 4: Gently fold the nut mixture into the meringue. Be patient. You want to keep it fluffy. Then, cover the bowl. It must rest in the fridge. I know, waiting is hard! But it needs at least 3 hours. I often make the dough before bed. It’s ready in the morning.
Step 5: Heat the oven again to 375°F. Use two spoons to make rough balls. Make them walnut-sized. They won’t be smooth. That’s good! Bake for about 15 minutes. They will puff and get little cracks. Let them cool on the sheet. Listen for the crackle! Then move them to a rack. They get so light and crisp.
Cook Time: 14–17 minutes
Total Time: About 4 hours (with chilling)
Yield: About 30 cookies
Category: Dessert, Cookies
Three Fun Twists on Your Volcano
Once you know the basic recipe, you can play. I love adding little changes. It makes baking feel like an experiment. Here are three ideas I’ve tried. My neighbor loved the orange one.
Chocolate Chip Lava Flow: Fold in mini chocolate chips with the nuts. They melt into little rivers.
Orange Zest Spark: Add the zest of one orange to the nut mixture. It smells like sunshine.
Spiced Earth: Mix a pinch of cinnamon and chili powder with the cocoa. It has a warm, mysterious kick.
Which one would you try first? Comment below!
Serving Your Stone Cookies
These cookies are perfect with a hot drink. I like to pile them on a simple plate. They look so pretty all cracked and rocky. For a special touch, dust them with powdered sugar. It looks like ash on a volcano. My grandkids love that.
For a drink, a small cup of strong espresso is wonderful. The bitter coffee loves the sweet nuts. For a non-alcoholic treat, try cold milk or a steamy chai tea. The cookies are perfect for dunking. Which would you choose tonight?

Keeping Your Lava Stones Perfect
These cookies keep wonderfully. Store them in a tin at room temperature. They stay crisp for weeks. You can also freeze the dough balls before baking. Just pop them on a tray and freeze solid. Then bag them up. Bake straight from the freezer, adding a minute or two.
I once baked a double batch for my book club. I froze half the dough. A surprise visit from my grandkids was no problem. Fresh, warm cookies in twenty minutes! Batch cooking like this saves time and stress. It means you’re always ready for a sweet moment.
Have you ever tried storing cookie dough this way? Share below!
Cookie Troubles? Let’s Fix Them
First, if your cookies spread too much, the dough was too warm. Chilling it is the key. It helps the cookies hold their rocky shape. I remember when I skipped the chill. My lava stones turned into flat pancakes!
Second, if they aren’t crunchy, the nuts were ground too fine. You want a coarse, gritty texture. This gives the cookie its wonderful bite. Getting the texture right builds your cooking confidence. You learn how ingredients work together.
Third, if the meringue goes flat, your bowl had grease in it. Always wipe it with lemon juice or vinegar first. A stiff meringue makes the cookies light and airy. This small step makes a big difference in flavor and texture. Which of these problems have you run into before?
Your Lava Stone Cookie Questions
Q: Can I make these gluten-free?
A: Yes! Just swap the flour for a gluten-free blend. It works perfectly.
Q: How far ahead can I make the dough?
A: You can refrigerate it for a full day. This actually improves the flavor.
Q: What if I don’t have hazelnuts?
A: Almonds are a great swap. The cookies will be just as tasty.
Q: Can I double the recipe?
A: Absolutely. Just mix in a bigger bowl. Everything else stays the same.
Q: Any optional tips?
A: A tiny pinch of cinnamon is lovely. Fun fact: The crackly top happens because the meringue dries quickly in the heat! Which tip will you try first?
From My Kitchen to Yours
I hope you love making these special cookies. They always remind me of happy kitchen experiments. I would love to see your rocky, crackly creations. Sharing food stories is how we connect.
Have you tried this recipe? Tag us on Pinterest @AnnasCozyKitchen. Show me your edible volcanoes! It makes my day to see your bakes.
Happy cooking!
—Anna Whitmore.

Scories De Vulcans or Lava Stone Cookies: Lava Stone Cookies Scories De Vulcans
Description
Discover Scories De Vulcain, the unique lava stone cookies with a cracked volcanic crust & chewy center. A stunning & delicious French pastry to bake and share.
Ingredients
Instructions
- Heat the oven to 375°F. Spread the hazelnuts on a baking sheet and toast them until golden, 8 to 12 minutes. If the hazelnuts were not peeled, rub them while still hot with a rough cloth to remove the skins. Let them cool completely.
- Grind the cooled hazelnuts very coarsely in a food processor with half of the sugar—crunchy texture is important. Pulse to work in the cocoa powder, flour, and baking powder.
- Set aside 2 tablespoons of the remaining sugar. Whisk 1 egg white with the remaining sugar until foamy, add it to the nut mixture in the processor, and work for a few seconds until mixed.
- Whisk the remaining egg whites in a bowl until soft peaks form. Gradually add the reserved 2 tablespoons sugar to the whites and continue beating until a very stiff meringue forms, 1 to 2 minutes.
- Add the nut mixture to the meringue and fold them together. Cover and refrigerate for at least 3 hours and up to 1 day.
- When ready to bake, heat the oven to 375°F. Line a baking sheet with parchment paper. Using 2 teaspoons, set rough balls the size of a small walnut on the paper.
- Bake until puffed and lightly browned, 14 to 17 minutes. Let cool slightly on the paper—they will crackle like a volcano! Transfer to a rack to cool completely.
Notes
- When cool, the cookies will be light and crisp and have a cracked, rocky surface. They may be stored in an airtight container for a month or more.






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