Irish Pumpkin Seed Soup with Cream and Herbs

Irish pumpkin seed soup is a creamy, Irish-inspired bowl of roasted pumpkin, onion, potato, herbs, and toasted pumpkin seeds. The sweet, caramelized pumpkin gives the soup depth, while a little cream softens the texture and crunchy seeds add contrast; recipes vary, and this is not a single fixed traditional Irish formula.

Ingredients

2 lb (900 g) peeled, seeded pumpkin or firm winter squash, cut into 1-inch (2.5 cm) pieces
2 tablespoons (30 ml) olive oil, divided
1 medium yellow onion (about 150 g), finely chopped
1 medium carrot (about 75 g), peeled and diced
2 garlic cloves (about 6 g), minced
1 medium floury potato (about 200 g), peeled and cut into ½-inch (1 cm) cubes
4 cups (946 ml) low-sodium vegetable or chicken stock
1 teaspoon (1 g) fresh thyme leaves, or ½ teaspoon (0.5 g) dried thyme
1 bay leaf
½ teaspoon (1 g) freshly grated nutmeg
1 teaspoon (5 g) fine salt, plus more to taste
¼ teaspoon (0.5 g) black pepper, plus more to taste
⅓ cup (45 g) hulled pumpkin seeds, also called pepitas
½ cup (120 ml) double cream or heavy cream
1 teaspoon (5 ml) cider vinegar, or 2 teaspoons (10 ml) lemon juice
2 tablespoons (8 g) chopped parsley or chives, for serving

Instructions

Heat the oven and prepare the pumpkin. Set a rack in the center and heat the oven to 425°F (220°C). Peel and seed the pumpkin if needed, then cut the flesh into evenly sized pieces so they roast at a similar rate. Toss the pumpkin with 1 tablespoon (15 ml) of the olive oil and spread it in one layer on a rimmed baking sheet. Keep the pieces uncrowded; if they touch too closely, they will steam instead of browning.
Roast until tender and browned. Roast for about 30 minutes, turning the pieces once after 15 minutes. The pumpkin is ready when a knife slides through easily and the edges have a few browned spots. The exact time depends on the variety and size of the pieces. While it roasts, prepare the other vegetables and start the soup base in the next step.
Soften the vegetables. Warm the remaining 1 tablespoon (15 ml) olive oil in a large heavy pot over medium heat. Add the onion and carrot and cook for 6–8 minutes, stirring occasionally, until softened but not deeply browned. Stir in the garlic and cook for 30 seconds, just until fragrant. If the garlic begins to color, lower the heat; browned garlic can taste bitter in a mild soup.
Build the soup. Add the potato, thyme, bay leaf, nutmeg, salt, pepper, and stock to the pot. Bring the liquid to a gentle boil, then reduce the heat, cover partially, and simmer for 10 minutes. Add the roasted pumpkin as soon as it is ready and simmer for another 5 minutes, until the potato is completely tender. Keep the soup at a gentle simmer rather than a hard boil to limit evaporation and splashing.
Toast the seeds. While the soup simmers, put the pepitas in a dry skillet over medium-low heat. Stir or shake the pan for 3–5 minutes, until the seeds look lightly golden and begin to pop. Tip them onto a plate immediately so residual heat does not scorch them. They should smell nutty, not smoky. Set aside for serving.
Blend until smooth. Remove the bay leaf. Blend the soup in the pot with an immersion blender, or transfer it in batches to a countertop blender. If using a countertop blender, work in small batches, do not fill it more than halfway with hot liquid, and loosen the lid’s center vent while covering it with a folded towel; trapped steam can force the lid off. Blend until velvety, then return the soup to the pot if necessary.
Finish and adjust. Stir in the cream and cider vinegar, then warm the soup over low heat for about 2 minutes without letting it boil. Taste and adjust the salt, pepper, and acidity. If it is thicker than you like, add stock or hot water a little at a time. Ladle into bowls and finish with toasted pepitas and chopped parsley or chives.

Tips

Choose a flavorful squash. Sugar pumpkin, kabocha, and butternut squash all work well. Large carving pumpkins tend to be watery and less sweet, so if that is what you have, roast the pieces until they are well browned and expect to adjust the seasoning at the end.
Use the right seeds. The recipe calls for hulled pepitas, which toast quickly and are easy to eat as a garnish. Whole seeds removed from a fresh pumpkin have shells; rinse and dry them thoroughly, then roast them longer until crisp, or use them separately as a snack. They are not a one-for-one textural match for pepitas.
Control the consistency after blending. Potato starch thickens the soup, and different pumpkins hold different amounts of water. Add extra stock only after blending, a few tablespoons at a time, so you do not accidentally make the soup thin.
Keep the cream gentle. Add it after blending and warm the soup over low heat. A vigorous boil can make a cream-based soup look grainy. For a dairy-free bowl, use unsweetened oat cream or full-fat coconut milk; coconut adds a noticeable flavor of its own.

Serving Suggestions

Serve the soup hot in warmed bowls, with a small handful of toasted pepitas and fresh parsley or chives on top. A swirl of cream is attractive, but add it sparingly so it does not cover the roasted pumpkin flavor. Crusty brown bread, soda bread, or toasted sourdough makes a useful accompaniment for scooping up the last of the soup.

For a fuller meal, pair it with a sharp green salad dressed with cider vinegar, or serve smaller portions as a first course before a simple roast or vegetable main. The soup is rich enough to stand on its own for lunch, especially with bread. Keep the toasted seeds separate until serving so they stay crisp rather than softening in the bowls.

Variations

Make it dairy-free: Replace the cream with ½ cup (120 ml) unsweetened oat cream, or use ⅓ cup (80 ml) full-fat coconut milk and add it to taste. Oat cream keeps the flavor more neutral; coconut milk makes the soup more aromatic and slightly sweeter.
Add apple: Cook 1 small tart apple (about 150 g), peeled, cored, and diced, with the onion and carrot. It brings a gentle fruity note; balance it with a little extra cider vinegar if the finished soup tastes too sweet.
Make it more herb-forward: Use 1 tablespoon (4 g) chopped fresh sage instead of the thyme, adding half with the vegetables and saving half for garnish. Sage pairs well with pumpkin, but it is more assertive, so start with less if you prefer a delicate soup.
Use squash seeds you have on hand: If you have fresh whole pumpkin seeds, clean and dry them, then toast until crisp. Alternatively, garnish with sunflower seeds or chopped toasted hazelnuts. These substitutes preserve the crunch but change the characteristic pumpkin-seed flavor.

Storage and Reheating

Cool leftovers promptly and refrigerate them within 2 hours of cooking in a covered, shallow container. The soup keeps for 3–4 days in the refrigerator. For the best texture, store the toasted pepitas separately at room temperature in an airtight container and add them just before serving; moisture makes them lose their crunch.

Reheat only the portion you need in a saucepan over medium-low heat, stirring often, until steaming hot. Avoid a hard boil after the cream has been added. If the soup has thickened in the refrigerator, stir in a splash of stock or water as it warms. You can freeze the soup for up to 2–3 months, though cream can separate slightly after thawing; freeze it before adding cream for the smoothest result, then stir in cream when reheating. Thaw overnight in the refrigerator.

Frequently Asked Questions

Is Irish pumpkin seed soup a traditional Irish dish?

This recipe is Irish-inspired rather than a claim to one established, historic national recipe. Pumpkin soup has many regional and family versions, and this one combines roasted pumpkin, a simple vegetable base, herbs, cream, and toasted seeds. For a locally familiar variation, use a seasonal winter squash and serve it with brown or soda bread.

Can I make the soup without an immersion blender?

Yes. A countertop blender works well, but hot soup expands as it blends. Fill the jar no more than halfway, leave the vent open, cover it with a folded towel, and blend in batches. You can also mash the soup with a potato masher for a rustic, chunky result, though it will not be as smooth.

Can I use canned pumpkin?

You can, but use plain pumpkin purée, not pumpkin pie filling. Roasting fresh pumpkin gives the soup a deeper, less uniform flavor, while canned purée makes a softer, more consistent soup. Stir about 3 cups (720 ml) purée into the simmered vegetables and stock, warm it through, and blend; reduce the stock if needed to keep the soup from becoming thin.

How can I make the soup thicker or thinner?

For thicker soup, simmer it uncovered for a few extra minutes before blending, or add a little more cooked potato. For thinner soup, stir in hot stock or water a few tablespoons at a time after blending. Make the adjustment before adding the final garnish, and taste again because extra liquid also dilutes the salt and seasoning.

Can I prepare it ahead?

Yes. Make the soup through blending up to 2 days ahead and refrigerate it promptly; for the smoothest reheating, wait to add the cream until you warm it to serve. Toast the pepitas separately and keep them dry. Reheat the soup gently, stir in the cream, and adjust the seasoning and acidity just before ladling.

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Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes

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