Instant Pot Split Pea Soup Recipe: Smoky Ham and Herb Harmony in One Pot

This Instant Pot split pea soup recipe transforms a humble pantry staple into a hearty, restaurant-worthy meal in under an hour. The secret lies in layering smoky ham, aromatic herbs, and slow-cooked peas until they develop a velvety texture that clings to every spoonful.

I’ve perfected this version after years of testing—balancing traditional flavors with modern convenience so you get depth without the hours of simmering.

The magic happens during the pressure cook, where the peas soften just enough to release their natural sweetness while retaining structure. A splash of apple cider vinegar brightens the broth, and a bay leaf infuses subtle earthy notes that elevate the dish beyond basic comfort food.

This isn’t your grandmother’s soup—it’s a foolproof, one-pot masterpiece that delivers restaurant-quality results with minimal effort.

By the time you’re done, you’ll have a rich, smoky soup with tender peas, savory ham, and a broth so flavorful it tastes like it simmered all day.

The aroma alone will have your kitchen smelling like a cozy diner, and the texture—creamy yet substantial—makes it perfect for chilly evenings or meal prep. Serve it with crusty bread to soak up every last drop, or store leftovers for up to five days.

For vegetarians, simply swap the ham for smoked tofu or vegan bacon—this recipe adapts beautifully while keeping the soul of classic split pea soup intact. The Instant Pot makes it idiot-proof (trust me, I’ve tested it), so even first-timers will achieve perfectly balanced flavors.

Let’s get cooking—your taste buds will thank you.

Ingredients for instant pot split pea soup

Pantry staples plus a few key ingredients for rich, smoky split pea soup in minutes.

The split peas are the star—look for green peas at the grocery store, not yellow. They hold their shape better and have a creamier texture. Bob’s Red Mill or the bulk section at Whole Foods have the best quality. Smoked tofu is your ham substitute here—Nasoya or Lightlife brands work perfectly. The carrots and celery? Baby carrots and heart celery save chopping time, but regular works too. Just make sure they’re fresh—no rubbery stems or limp carrots.

No smoked tofu? Vegan bacon bits or even extra-firm tofu marinated in liquid smoke works. Fresh thyme is ideal, but dried works at one-third the amount. The apple cider vinegar is non-negotiable—it cuts through the richness and brightens everything. No vegetable broth? Water plus 1 tbsp soy sauce gets you close. The garlic can be pre-minced from a jar (I won’t judge), but fresh always tastes better. For extra depth, add a 1/4 tsp smoked paprika with the thyme.

This soup tastes even better the next day—4-5 days in the fridge, 3 months frozen. I double the batch and freeze half immediately. The peas thicken as they cool, so add a splash of broth when reheating. The parsley wilts fast, so add it right before serving. Keep the bay leaves in while cooking, then remove before serving—no one wants to bite into one.

Step-by-step instructions for Instant Pot split pea soup

This one-pot method delivers hearty, smoky flavor with minimal effort.

Set your Instant Pot to “Sauté” mode and add the 1 tablespoon olive oil. Once hot, add the chopped 1 whole yellow onion, 2 medium carrots, and 2 whole celery stalks. Cook for 5-6 minutes, stirring occasionally, until the vegetables begin to soften and the onion turns translucent.

Here’s the thing—don’t rush this step. You want the vegetables to develop a slight caramelization before adding the split peas. This builds deep flavor that carries through the entire soup. If the vegetables start to stick, add a splash of water and scrape up any browned bits from the bottom—they’re packed with flavor.

Rinse the 1.5 cups dried green split peas thoroughly under cold water to remove any debris. Add them to the Instant Pot along with the cubed 8 oz smoked tofu, 4 cloves minced garlic cloves, 1 teaspoon dried thyme, 2 whole bay leaves, and 1 tablespoon apple cider vinegar. Stir everything together to combine.

The vinegar might seem unusual, but it brightens the soup and balances the earthy split peas. Give it a quick stir to distribute the seasonings evenly. This is also when you’ll notice the smoked tofu cubes start to absorb some of the vegetable flavors—this is your first taste of the final dish.

Pour in the 4 cups vegetable broth and add the 1.5 teaspoons salt and 0.5 teaspoon black peppercorns. Secure the lid, set the valve to “Sealing,” and cook on High Pressure for 25 minutes. Real talk: don’t skip the high pressure—this ensures the split peas become fork-tender while keeping the tofu from falling apart.

Once the cooking time is complete, allow the pressure to release naturally for 10 minutes before quick-releasing any remaining pressure. This gradual release prevents the split peas from becoming mushy. You’ll know they’re done when you can easily pierce a split pea with a fork—it should feel soft but still hold its shape slightly.

After the pressure has fully released, carefully remove the lid. Use a slotted spoon to remove the 2 whole bay leaves—they’ve done their job and can be discarded. Taste the soup and adjust the seasoning if needed. You might need a little more salt, especially if you used low-sodium broth. The smoked tofu should be tender but still hold its shape, adding a satisfying bite to each spoonful.

Ladle the soup into bowls and garnish each serving with 0.25 cup chopped fresh parsley. The parsley adds a fresh contrast to the rich, smoky flavors. Serve immediately with crusty bread—this soup is at its best while still warm, with the split peas soaking up all the flavorful broth.

Troubleshooting perfect results

Split Peas Too Soft

If your split peas turn out mushy, you likely released the pressure too quickly. Always let the Instant Pot release pressure naturally for 10 minutes before quick-releasing. This gradual release preserves their texture.

Also, check your cook time—25 minutes on high pressure is ideal for green split peas; reduce to 20 minutes if you prefer them slightly firmer. 🌱

Broth Too Thin

A watery soup often means the peas didn’t absorb enough liquid. After pressure cooking, let the soup sit uncovered for 5-10 minutes—the peas will continue softening and releasing starch, thickening the broth naturally.

If it’s still too thin, mash 1-2 split peas with a fork to release more starch. For next time, reduce broth by ½ cup.

Smoky Flavor Missing

If your soup lacks smokiness, the smoked tofu or ham wasn’t infused enough. For stronger flavor, marinate the smoked tofu in 1 tbsp liquid smoke + 1 tbsp soy sauce for 15 minutes before adding.

Or, swap in ½ cup smoked paprika (divided) with the thyme—sprinkle ¼ cup in the sauté step and the rest after pressure cooking. 🔥

Vegetables Still Crunchy

Your carrots and celery need more time in the sauté step. Extend cooking to 8-10 minutes until they’re fork-tender before adding peas. For extra insurance, cut them into ¼-inch slices instead of chunks.

If they’re still tough after pressure cooking, blend ½ cup soup and stir it back in—this thickens the broth and softens the veggies.

Burnt Onions or Stuck-On Food

Watch your sauté closely—onions burn easily and create bitter flavors. Keep the heat at medium-low and stir every 1-2 minutes. If food sticks, add 1-2 tbsp water and scrape with a wooden spoon.

For stubborn bits, soak the Instant Pot with hot water + 2 tbsp baking soda for 30 minutes before scrubbing. 🧂

Too Salty

Salt buildup happens when using low-sodium broth or adding extra salt later. To fix it, stir in ½ cup plain yogurt or sour cream (dairy or coconut-based) and let it sit for 5 minutes—the acidity balances the salt.

For prevention, use ½ tsp salt during cooking and adjust after tasting. If using smoked tofu, reduce salt by ¼ tsp since it’s already seasoned.

Frequently asked questions