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If you love baking with sourdough, these sourdough biscotti are such a simple and beautiful way to use your discard.

They are lightly sweet, crisp on the outside, slightly tender in the center, and perfect for dipping into tea or coffee. The tart cranberries and buttery pistachios create the perfect balance of flavor without being overly sweet.

This is a classic-style sourdough biscotti — not paper thin, not overly dry — just the right texture for everyday baking.

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Why You’ll Love These Sourdough Biscotti

• Uses 100 g sourdough discard

• Simple pantry ingredients

• Naturally beautiful colors

• Perfect for gifting or tea time

• Stores well for weeks

If you regularly bake sourdough bread, this is such a practical way to reduce waste and turn discard into something special.

Tools

• Mixing bowls (small and large)
• Measuring cups and spoons
• Digital kitchen scale
• Whisk
• Spatula
• Serrated knife (for slicing logs)
• Baking sheet
• Parchment paper or silicone baking mat
• Cooling rack

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Ingredients

• Sourdough discard (unfed) – Don’t worry if your discard is new or a little runny; it adds flavor and helps these biscotti rise.
• Sugar – Just enough to sweeten without being too sugary. You can use white or light brown sugar.
• Eggs – These bind everything together and give your biscotti structure.
• Melted butter  – Adds richness and tenderness. You can swap for neutral oil if you prefer dairy-free.
• Vanilla extract – Brings warmth and flavor.
• All-purpose flour – This is the main structure. Use a kitchen scale for best results
• Baking powder – Helps your biscotti rise slightly so they’re not too dense.
• Salt – Balances sweetness and enhances flavor.
• Dried cranberries– Adds tart, fruity bites in every slice.
• Pistachios– Adds crunch and color. Chop coarsely so you get texture without tearing the biscotti.
• Optional: Almond extract – Enhances the nutty flavor and pairs beautifully with the pistachios. A little goes a long way!

How to Make Sourdough Biscotti

1. Mix the Wet Ingredients

In a large bowl, whisk together sourdough discard, sugar, eggs, melted butter, and vanilla until smooth.

2. Add the Dry Ingredients

Stir in flour, baking powder, and salt.

Fold in cranberries and pistachios.

The dough will be thick but soft.

3. Shape the Logs

Line a baking sheet with parchment paper.

Divide dough in half and shape into two logs, about:

• 8–9 inches long

• 2½–3 inches wide

• About 1 inch tall

This creates a classic, slightly thicker biscotti.

4. First Bake

Bake at 350°F (175°C) for 25–30 minutes, until lightly golden and set in the center.

Let cool for 15–20 minutes.

5. Slice

Using a serrated knife, slice diagonally about ½–¾ inch thick.

For slightly softer centers, slice thicker.

For crisper biscotti, slice thinner.

6. Second Bake

Place slices cut-side down.

Bake 8–10 minutes, flip, then bake another 8–10 minutes until crisp and golden.

Cool completely before storing.

Texture Notes

• Crisp on the outside

• Slightly tender in the center

• Not overly dry

• Lightly sweet

They become firmer as they cool.

How to Store

Store in an airtight container at room temperature for up to 2 weeks.

Flavor Variations

This sourdough biscotti base recipe works well with:

• Cranberry Almond

• Chocolate Hazelnut

• Lemon Pistachio

• Orange Almond

You can easily adjust add-ins depending on the season.

A Simple Way to Use Sourdough Discard

If you bake sourdough bread regularly, you probably have discard in the fridge most weeks.

Instead of throwing it away, this sourdough biscotti recipe turns it into something practical and beautiful — a simple cookie that pairs perfectly with tea and keeps well for busy days.

Frequently Asked Questions (FAQ)

1. Can I use any sourdough discard?

Yes! You can use either fed or unfed discard. This recipe works with discard straight from the fridge. If it’s very runny, just add 1–2 extra tablespoons of flour to keep the dough manageable.

2. Can I make these dairy-free?

Absolutely! Replace the melted butter with the same amount of neutral oil (like sunflower or canola). The biscotti will still be crisp and delicious.

3. Can I use other nuts or dried fruit?

Yes! Try almonds, hazelnuts, or pistachios. For dried fruit, cherries, cranberries, or raisins all work well. You can mix and match depending on what you have.

4. Why do biscotti get hard?

Biscotti are meant to be crisp! The second bake dries them out. If you want them slightly softer, slice them thicker and reduce the second bake by a few minutes.

5. How should I store them?

Keep biscotti in an airtight container at room temperature for up to 2 weeks. They also freeze well for up to 2 months — just thaw before enjoying.

6. Can I skip the almond extract?

Yes! It’s optional. It enhances the pistachio flavor but the biscotti are still delicious without it.

7. Can I use whole wheat or gluten-free flour?

You can try! Whole wheat will make the biscotti slightly denser and nuttier. Gluten-free flours may need a binder like xanthan gum, and the texture may be a little different.

8. My biscotti broke when slicing — what did I do wrong?

This happens if the logs are too soft or warm. Let them cool for 15–20 minutes before slicing. If needed, refrigerate 20–30 minutes to firm up the dough.

Made these cranberry pistachio sourdough biscotti?

I’d love to see! Snap a photo, tag me @shakanranch, or leave a review below — it makes my day to see your creations ❤️