Equipment
Ingredients
Soup Base and Aromatics
- 200 g smoked bacon, cut into 8mm lardons
- 1 yellow onion, finely diced
- 2 carrot, peeled and sliced into 5mm rounds
- 2 celery, diced into 6mm pieces
- 4 garlic, minced
Legumes, Liquids, and Herbs
- 450 g green split peas, rinsed and sorted
- 1500 ml low-sodium chicken broth
- 500 ml water
- 8 fresh thyme, whole sprigs tied with kitchen twine
- 2 dried bay leaf, whole
Finishing and Seasoning
- 15 ml apple cider vinegar
- 4 g fine sea salt
- 2 g black pepper, freshly cracked
Nutrition (per serving)
Nutrition is estimated per serving. Nutrients without complete source data are omitted.
Full nutrition
- Calories
- 483 kcal
- Protein
- 33 g
- Carbohydrates
- 56 g
- Fat
- 17 g
- Fiber
- 21 g
- Zinc
- 2.6 mg
- Water
- 376 g
Sources: Aggregated Public Data, USDA FoodData Central
Method
Rinse 450 g of dried green split peas thoroughly under cold running water in a fine-mesh colander, picking out and discarding any discolored legumes or field debris.
Place 200 g of diced bacon lardons into a cold 6-liter Dutch oven, set the burner to medium heat at 170°C (338°F), and render the fat for 8 minutes until crisp and golden brown.
Using a slotted spoon, transfer approximately half of the crisp bacon lardons to a paper towel-lined plate to reserve for garnish, keeping all rendered bacon fat and the remaining bacon in the pot.
Add the diced onion, sliced carrots, and diced celery to the Dutch oven, sautéing in the bacon fat over medium heat at 150°C (302°F) for 7 minutes until the vegetables soften and the onions turn translucent.
Add 4 minced garlic cloves to the softened vegetables and stir constantly over medium heat at 150°C (302°F) for 60 seconds until fragrant.
Pour 1500 ml of low-sodium chicken broth and 500 ml of water into the Dutch oven, then stir in the drained split peas, the tied fresh thyme bundle, and 2 dried bay leaves, bringing the soup to a rolling boil over high heat at 100°C (212°F).
Reduce heat to low, cover the Dutch oven partially with the lid, and simmer gently at 92°C (198°F) for 60 minutes, stirring every 10 minutes, until the split peas disintegrate completely into a rich, creamy purée.
Remove the pot from heat and use kitchen tongs to extract and discard the spent thyme bundle and dried bay leaves.
Stir in 15 ml of apple cider vinegar, 4 g of fine sea salt, and 2 g of freshly cracked black pepper with the wooden spoon, tasting and adjusting seasoning as needed.
Ladle 375 g of hot soup into each warmed bowl, scatter the reserved crisp bacon lardons across the top, and serve immediately.
Chef's Notes
- Reserving half of the cooked bacon for the finish preserves a crucial textural contrast against the naturally creamy, mellow purée of the simmered peas.
- Split peas are uniquely rich in soluble amylose starch, which dissolves during cooking to naturally thicken the soup without needing wheat flour, cornstarch, or dairy cream.
- Split pea soup improves overnight as starches undergo mild retrogradation, making it an ideal candidate for advance preparation and next-day leftovers.
- A splash of apple cider vinegar added off the heat cuts through the heavy smoke of the bacon fat and lifts the herbal profile of the fresh thyme.
Storage
Refrigerator: 4 days — Cool soup to room temperature within two hours before refrigerating in an airtight container. The soup thickens significantly as starches hydrate during cooling.
Freezer: 3 months — Freeze in rigid, airtight freezer containers leaving 2 cm of headspace for liquid expansion.
Reheating: Reheat over medium-low heat on the stovetop, whisking in 50 ml to 100 ml of water or gluten-free broth per serving to loosen texture. Bring to a minimum internal temperature of 74°C (165°F) verified with a calibrated digital food thermometer before serving.
Troubleshooting
Split peas remain hard or gritty after 60 minutes of simmering
Cause: The split peas are aged and dry, the cooking water is hard with high mineral content, or acidic ingredients were added too early
Fix: Add 1 g (approx. 1/4 teaspoon) of baking soda to soften the water and simmer covered for an additional 15 to 20 minutes
Prevention: Use fresh dried split peas, use filtered water, and reserve acidic additions such as vinegar until the legumes are tender
Soup becomes excessively thick and sticks to the bottom of the pot
Cause: The heat was set too high or the pot was left unattended without periodic stirring, causing pea starch to settle and caramelize
Fix: Without scraping the scorched layer at the bottom, carefully ladle the clean soup into a clean pot and whisk in 150 ml of warm broth
Prevention: Maintain a gentle simmer below 95°C (203°F) and stir across the bottom surface every 10 to 15 minutes
Soup tastes excessively salty
Cause: The bacon released more sodium than anticipated, or stock reduced down excessively
Fix: Whisk in 100 ml to 200 ml of unsalted water or low-sodium broth and a splash of vinegar to rebalance the flavor profile
Prevention: Use low-sodium broth and wait until after simmering to add any supplemental salt
Cultural Context
Split pea soup is an ancient culinary preparation documented in Greek and Roman antiquity, later evolving into a cornerstone winter provision across Northern Europe and colonial North America. Hearth cooks combined economical dried field peas with salt-cured or smoked pork and woody herbs to create a sustaining, shelf-stable meal capable of enduring long winters. Today, the pairing of sweet green peas, smoky cured bacon, and garden thyme remains a classic staple of rustic home cooking.










