There’s something magical about sourdough. The rich aroma, the tangy flavor, the crisp, crackly crust giving way to a soft, chewy crumb. But beyond the deliciousness, sourdough is a testament to sustainable living. This sourdough recipe made with just a handful of simple ingredients—all of which can be sourced with minimal waste—it’s the perfect centerpiece for a wasteless pantry.

Sourdough is a journey, not a destination. It’s a living bread, fueled by a starter—a wild culture of flour and water that you cultivate yourself. This process eliminates the need for commercial yeast packets, making it one of the most eco-friendly baking methods there is.

Your Wasteless Sourdough Pantry Essentials

The beauty of sourdough is its simplicity. You don’t need a long list of ingredients. The key is quality and a mindful approach to sourcing.

• Flour: The heart of your starter and your loaf. Source high-quality bakers flour and wholemeal flour from bulk bins or a refill store. Having a variety on hand allows you to experiment with different flavors and textures, all while avoiding plastic bags and paper sacks.
• Water: Simple tap water is all you need. Using home water rather than buying bottled water is a core principle of a wasteless kitchen.
• Salt: Salt not only seasons the bread but also controls fermentation and strengthens the dough. Fine salt is perfect for this, and like flour, it’s easily found in bulk.
• A Jar: You’ll need a glass jar with a lid for your sourdough starter. A jar you already have—like a repurposed pasta sauce or pickle jar—is the most wasteless option of all.

Step 1: The Sourdough Starter – The Heart of Your Loaf

This is where the magic begins! Creating a sourdough starter from scratch is a rewarding and beautiful process. It’s simply a mix of flour and water that, over time, captures natural yeasts and bacteria from the air.

To create your starter:

• In a clean glass jar, mix 50g of rye flour and 50g of water until well combined.
• Cover loosely with the lid and leave it in a warm spot.
• For the next 5-7 days, “feed” your starter every 24 hours by discarding about half of it, then mixing in 50g of fresh flour and 50g of water.
• After a week, your starter should be bubbly and active, smelling slightly sweet and tangy. It’s alive!

Step 2: Baking a Classic Sourdough Loaf

Once your starter is active and “bubbly,” you’re ready to bake. This recipe is for a basic, beautiful loaf that highlights the natural flavor of the fermented grains.

Ingredients:

• 100g active sourdough starter
• 350g warm water
• 500g baker’s flour
• 10g fine salt

Instructions:

1. Mix & Autolyse: In a large bowl, combine the active starter and warm water. Whisk to dissolve the starter. Add the flour and mix with a wooden spoon or your hands until no dry flour remains. Cover and let rest for 30 minutes. This step, called autolyse, allows the flour to fully hydrate.
2. Add Salt: Sprinkle the salt over the dough. Using wet hands, work the salt into the dough, squeezing and folding it for a minute or two until it feels incorporated.
3. Bulk Fermentation & Folds: Cover the bowl again and let the dough rise at room temperature. Every 30-45 minutes, perform a series of “stretch and folds.” To do this, grab a side of the dough, stretch it up, and fold it over the middle. Repeat this for all four sides of the dough. Repeat this process 3-4 times over the next 2-3 hours.
4. Shaping: Gently turn the dough onto a lightly floured surface. Pre-shape it into a round and let it rest for 20 minutes. Then, do a final shape into your desired loaf shape and place it into a floured banneton or a bowl lined with a floured tea towel.
5. Proofing: Cover the dough and place it in the fridge for 12-24 hours. This “cold proof” develops a deeper flavor and makes the dough easier to handle.
6. Bake! Preheat your oven to 230°C (450°F) with a Dutch oven or other lidded baking pot inside. Once hot, carefully turn the dough into the pot. Score the top of the loaf with a sharp knife or razor blade.
7. Bake with the lid on for 20 minutes. Then, remove the lid and bake for another 20-25 minutes, or until the crust is a deep golden brown and the loaf sounds hollow when tapped.

The Ultimate Wasteless Tip: Sourdough Discard!

A key part of sourdough is the “discard,” the portion of the starter you remove before feeding. Don’t let it go to waste! Sourdough discard is a fantastic ingredient for pancakes, waffles, crackers, and more. This is the true essence of a wasteless pantry—every part of the ingredient is used and appreciated.

Happy baking, and enjoy the delicious rewards of a more sustainable kitchen!