Kosher Mushroom ‘Clam’ Chowder – Creamy Comfort Soup

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Growing up in a kosher home, I always felt left out when friends talked about their favorite clam chowder recipes. The creamy, hearty soup sounded amazing, but obviously it wasn’t an option for our family. Years later, I finally figured out how to capture all those comforting flavors using ingredients that work within kashrut.

The secret is in the mushrooms. I use a mix of shiitake, oyster, and regular button mushrooms to create layers of umami that mimic the briny depth you’d get from clams. The shiitakes bring an earthy richness, while oyster mushrooms add a subtle oceanic note that’s surprisingly convincing. I dice them pretty small so they distribute throughout the soup like little tender clam pieces.

Building Umami Without the Clams

My technique involves sautéing the mushrooms until they release all their moisture and start to caramelize slightly. This concentrates their flavor and prevents the soup from getting watery. Then I build the base with butter, onions, celery, and carrots, just like traditional chowder. The roux is crucial here – don’t rush it. Let it cook for a few minutes to eliminate that raw flour taste before adding the broth.

This soup works perfectly for Shabbat lunch or any chilly evening when you want something substantial. I like serving it with crusty bread or oyster crackers if you can find kosher ones. It reheats beautifully, though you might need to thin it with a splash of broth since it thickens as it sits.

When to Serve This Kosher Chowder

Kosher Mushroom 'Clam' Chowder - Creamy Comfort Soup - American recipe
Growing up in a kosher home, I always felt left out when friends talked about their favorite clam chowder recipes. The creamy, hearty soup sounded amazing, but obviously it wasn't an option for our family. Years later, I finally figured out how to capture all those comforting flavors using ingredients that work within kashrut. The secret is in the mushrooms. I use a mix of shiitake, oyster, and regular button mushrooms to create layers of umami that mimic the briny depth you'd get from clams. The shiitakes bring an earthy richness, while oyster mushrooms add a subtle oceanic note that's surprisingly convincing. I dice them pretty small so they distribute throughout the soup like little tender clam pieces. My technique involves sautéing the mushrooms until they release all their moisture and start to caramelize slightly. This concentrates their flavor and prevents the soup from getting watery. Then I build the base with butter, onions, celery, and carrots, just like traditional chowder. The roux is crucial here - don't rush it. Let it cook for a few minutes to eliminate that raw flour taste before adding the broth. This soup works perfectly for Shabbat lunch or any chilly evening when you want something substantial. I like serving it with crusty bread or oyster crackers if you can find kosher ones. It reheats beautifully, though you might need to thin it with a splash of broth since it thickens as it sits.
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Prep Time 20 minutes
Cook Time 35 minutes
Total Time 55 minutes
Servings: 6 servings
Course: Main Course
Cuisine: American
Calories: 285
Ingredients Method Notes

Ingredients
  

  • 4 tablespoons butter
  • 8 ounces shiitake mushrooms stems removed, caps diced
  • 6 ounces oyster mushrooms roughly chopped
  • 8 ounces button mushrooms diced small
  • 1 large yellow onion diced
  • 2 stalks celery diced
  • 2 medium carrots diced
  • 3 cloves garlic minced
  • 1/4 cup all-purpose flour
  • 4 cups vegetable broth
  • 2 medium Yukon Gold potatoes peeled and cubed
  • 1 cup heavy cream
  • 2 tablespoons fresh thyme leaves
  • 1 bay leaf
  • 1 teaspoon kosher salt plus more to taste
  • 1/2 teaspoon black pepper freshly ground
  • 2 tablespoons fresh parsley chopped for garnish

Method
 

  1. Heat 2 tablespoons butter in a large Dutch oven or heavy-bottomed pot over medium-high heat. Add all the mushrooms and cook, stirring occasionally, until they release their moisture and start to brown, about 8-10 minutes. Season with salt and pepper. Transfer mushrooms to a plate and set aside.
  2. Reduce heat to medium and add remaining 2 tablespoons butter to the same pot. Add onion, celery, and carrots. Cook, stirring occasionally, until vegetables are softened, about 5 minutes. Add garlic and cook for another minute.
  3. Sprinkle flour over the vegetables and stir constantly for 2 minutes to cook out the raw flour taste. This creates your roux base.
  4. Gradually whisk in the vegetable broth, making sure to scrape up any browned bits from the bottom of the pot. Add potatoes, thyme, bay leaf, salt, and pepper. Bring to a boil.
  5. Reduce heat to low and simmer until potatoes are tender, about 15-18 minutes. Stir in the cooked mushrooms and heavy cream.
  6. Continue cooking for 5 more minutes, stirring occasionally, until heated through and slightly thickened. Remove bay leaf and taste for seasoning, adding more salt and pepper as needed.
  7. Serve hot, garnished with fresh chopped parsley and oyster crackers if desired.

Notes

This soup thickens as it sits, so add a splash of broth when reheating leftovers. Can be stored in the refrigerator for up to 3 days. For a lighter version, substitute half-and-half for the heavy cream, though the soup won't be quite as rich.
Nutrition Facts
6 servings per recipe
Serving size 1 serving
Calories 285
% Daily Value*
Total Fat 18g 23%
Saturated Fat 11g 55%
Trans Fat 0g
Cholesterol 48mg 16%
Sodium 890mg 39%
Dietary Fiber 3g 11%
Total Sugars 8g
Protein 8g 16%
*Percent Daily Values are based on a 2,000 calorie diet.
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