Keto Biscotti (Almond Flour, No Crumbling, 2g Net Carbs)
- Total time
- 3 hours 13 minutes
- Makes
- 16 biscotti
- Net carbs
- 2g
- Calories
- 146
The first log I baked looked perfect. Golden, firm on top, smelling of toasted almonds. Then I put a knife through it and it fell apart into a pile of crumbs and a few sad wedges.
That is the problem with keto biscotti. Almond flour has no gluten holding it together, so a warm log is fragile in a way a wheat one never is. The second problem is softness: plenty of almond flour biscotti come out more like a dry cookie than something with a snap.
The fix for both is the same idea. Make the log cold before you cut it, and dry the slices slowly at a low oven temperature. You get 16 crisp biscotti at 2g net carbs each, with a dark chocolate end for dunking.
Why This Keto Biscotti Holds Together
Freezing the log is what stops the crumbling. Cooled for half an hour and then frozen for an hour, the butter in the dough firms up and binds the crumb. A frozen log slices like a block of cheese. A warm one shatters.
Slice straight down. Sawing back and forth tears almond flour apart. One firm downward cut with a sharp serrated knife leaves clean edges.
The second bake is low and slow. At 275°F the slices dry out all the way through before they brown. Hotter, the outsides darken while the middles stay soft. The last step is letting them cool inside the switched-off oven, which finishes the drying.
Half-inch slices matter too. Thicker ones never crisp in the center, however long they bake.
Recipe Overview
- Prep Time: 15 minutes
- Bake Time: 38 minutes, in two bakes
- Cooling, Freezing and Setting: 2 hours 20 minutes
- Total Time: about 3 hours 15 minutes, mostly hands off
- Makes: 16 biscotti
- Net Carbs: 2g per biscotti
Ingredients
For the biscotti
| Ingredient | Quantity | Notes |
| Blanched almond flour | 2 cups (224 g) | Superfine, not almond meal |
| Granulated erythritol-monk fruit blend | ¼ cup (48 g) | Not allulose, see below |
| Baking powder | 1 tsp | |
| Fine sea salt | ¼ tsp | |
| Large egg | 1 | Room temperature |
| Unsalted butter | ¼ cup (57 g) | Melted and cooled |
| Almond extract | 1 tsp | |
| Sliced almonds | ⅓ cup (30 g) | Roughly broken |
For the chocolate dip
| Ingredient | Quantity | Notes |
| Sugar-free dark chocolate chips | 2 oz (57 g) | |
| Refined coconut oil | 1 tsp | Thins the chocolate |
Why not allulose? Allulose browns fast and holds onto moisture, so allulose biscotti go dark in the second bake and soften again within a day. An erythritol blend dries out properly and stays crisp.
Superfine blanched almond flour gives a smoother, tighter crumb. Almond meal, with the skins left on, makes a coarser log that crumbles more readily under the knife.
Recipe Timing
| Order | Step | Time |
| 1 | Mix the dough and shape the log | 15 minutes |
| 2 | First bake at 350°F | 20 minutes |
| 3 | Cool, then freeze the log | 1 hour 30 minutes |
| 4 | Slice and second bake at 275°F | 18 minutes |
| 5 | Cool in the switched-off oven | 30 minutes |
| 6 | Dip and let the chocolate set | 20 minutes |
Step-by-Step Instructions
1. Make the dough
Heat the oven to 350°F and line a baking sheet with parchment. Whisk the blanched almond flour, sweetener, baking powder and fine sea salt in a large bowl. Stir in the egg, then the melted butter and the almond extract, until it comes together as a stiff dough. Fold in the sliced almonds.
If the dough feels too sticky to shape, chill it for 10 minutes.
2. Shape one flat log
Turn the dough onto the parchment and press it into a flat log about 8 inches long, 4 inches wide and ¾ inch tall. Square off the ends and smooth the top with damp hands. An even height means even baking, and a low, wide log gives you longer slices.
3. First bake
Bake 20 minutes, until the edges are golden and the top is firm to a light touch. The inside will still be soft, which is normal.
4. Cool, then freeze
Let the log cool on the sheet for 30 minutes, then slide it, parchment and all, into the freezer for 1 hour. Lower the oven to 275°F while it chills.
5. Slice it straight down
Move the frozen log to a cutting board. With a sharp serrated knife, cut it crosswise into ½-inch slices, pushing straight down in one firm stroke rather than sawing. You should get about 16.
6. Second bake, then cool in the oven
Lay the slices cut side down on the lined sheet. Bake 10 minutes, carefully turn each one over, and bake 8 minutes more, until the cut faces are just light golden. Do not let them get dark. They keep coloring as they cool.
Turn the oven off, prop the door open with a wooden spoon and leave the biscotti inside until completely cool, about 30 minutes. This is where they go from firm to crisp.
7. Dip in chocolate
Melt the chocolate chips with the coconut oil in a narrow cup in 20-second bursts, stirring between each. Dip one end of each biscotti, let the excess drip off, and lay it on parchment until set, about 20 minutes, or 10 in the fridge.
Recipe Tips and Variations
Lemon. Swap the almond extract for 1 teaspoon of vanilla and add the finely grated zest of one lemon to the dough. Skip the chocolate, or drizzle it thinly instead of dipping.
Pistachio. Use ⅓ cup of shelled pistachios in place of the almonds and swap half the almond extract for vanilla.
Cinnamon. Add 1 teaspoon of ground cinnamon to the dry ingredients and leave off the chocolate.
No chocolate at all. Plain, the biscotti are 1.5g net carbs and 124 calories each.
Serving Suggestions
Biscotti were made for dunking. Dip one in black coffee, or in a mug lightened with my keto coffee creamer. On a cold evening, they are excellent dragged through a cup of keto hot chocolate.
They also travel well, which makes them a good gift: a dozen in a tall jar or a cellophane bag, tied with ribbon.
Storage and Re-Crisping
Room temperature: up to 1 week, in a container with the lid resting loosely on top or under a clean towel. A fully airtight box traps moisture and almond flour softens quickly in it.
Freezer: up to 3 months, frozen in a single layer first and then bagged.
If they soften, spread them on a tray and give them 10 minutes at 250°F, then let them cool on the tray. They crisp right back up.
Frequently Asked Questions
Why does my keto biscotti crumble when I slice it?
It was cut while warm. Almond flour has no gluten, so the log needs to be cold and firm to hold together. Cool it 30 minutes, freeze it an hour, and cut straight down with a serrated knife.
Why are my almond flour biscotti soft and not crunchy?
Usually the slices were too thick, or the second bake was too hot and too short. Keep them at half an inch, bake at 275°F, and let them cool in the switched-off oven.
Can I use coconut flour?
Not as a straight swap. Coconut flour absorbs far more liquid than almond flour and would need a completely different recipe.
How many carbs are in keto biscotti?
One chocolate-dipped biscotti is 2g net carbs and 146 calories. The sweetener is not counted, in line with how it is treated across this site.
More Keto Cookies
- Keto Pecan Lace Cookies — thin, crisp pecan cookies with a dark chocolate dip of their own.
- Keto Sugar Cookies — cut-outs that hold sharp edges, with an icing that actually sets, 1.1g net carbs each.
- Keto Chocolate Chip Cookies — the classic, soft in the middle, 2g net carbs each.
- Keto Brownie Bark — thin, crispy brownie shards for anyone who always wanted the edge piece.
Recipe Card
Want something to dunk them in? My keto dalgona coffee is whipped and poured over ice, and my bulletproof coffee takes a minute in the blender.
Keto Biscotti
Equipment
- Baking sheet lined with parchment
- Serrated knife sharp
- Mixing Bowl
- Wooden spoon to prop the oven door
Ingredients
For the biscotti
- 2 cups blanched almond flour 224 g, superfine
- 1/4 cup granulated erythritol-monk fruit blend 48 g, not allulose
- 1 tsp baking powder
- 1/4 tsp fine sea salt
- 1 large egg room temperature
- 1/4 cup unsalted butter 57 g, melted and cooled
- 1 tsp almond extract
- 1/3 cup sliced almonds 30 g, roughly broken
For the chocolate dip
- 2 oz sugar-free dark chocolate chips 57 g
- 1 tsp refined coconut oil
Instructions
- Dough: Heat the oven to 350°F and line a baking sheet with parchment. Whisk the blanched almond flour, granulated erythritol-monk fruit blend, baking powder and fine sea salt. Stir in the large egg, then the melted unsalted butter and almond extract, until a stiff dough forms. Fold in the sliced almonds. Chill 10 minutes if too sticky to shape.
- Shape: Press the dough into a flat log on the parchment, about 8 inches long, 4 inches wide and 3/4 inch tall, with square ends and a smooth top.
- First bake: Bake 20 minutes, until the edges are golden and the top is firm.
- Cool and freeze: Cool on the sheet 30 minutes, then freeze the log on its parchment for 1 hour. Lower the oven to 275°F.
- Slice: With a sharp serrated knife, cut the frozen log crosswise into 1/2-inch slices, pressing straight down in one stroke rather than sawing. You should get about 16.
- Second bake: Lay the slices cut side down on the lined sheet. Bake 10 minutes, turn them over, and bake 8 minutes more, until just light golden.
- Crisp: Turn the oven off, prop the door open with a wooden spoon and leave the biscotti inside until completely cool, about 30 minutes.
- Dip: Melt the sugar-free dark chocolate chips with the refined coconut oil in 20-second bursts, stirring between each. Dip one end of each biscotti and set on parchment until firm, about 20 minutes.
Notes
Keep cooking
