Top-down view of Lemony Leek and Broccoli Soup, showing a close-up view of the soup, garnished with lemons and thinly sliced leeks
March 26, 2024

Lemony Leek and Broccoli Soup – Vegan

March 26, 2024

Lemony Leek and Broccoli Soup – Vegan

Top-down view of Lemony Leek and Broccoli Soup, showing a close-up view of the soup, garnished with lemons and thinly sliced leeks

This Lemony Leek and Broccoli Soup is a plant-based cream soup that bridges the gap between hearty Winter soups and lighter Spring cuisine. Satisfying but not too rich, plant milk and some of our DIY Mother Mix make this soup creamy without any dairy. 

If you haven't checked out the Mother Mix yet, you should. Here's three reasons why: First, it's super simple to make; second, it kickstarts a number of recipes on the site; and third, you can store it in the pantry, so it's ready when you need it. 

About the Mother Mix

Close up of Mother Mix in a bowl with a wooden scoop

The Mother Mix is an all-natural, gluten-free dry mix that you can make in minutes and store in your pantry. 


Use it to jumpstart over 16 different creamy and cheesy plant-based recipes - from Spinach Dip to Scalloped Potatoes and Veggie Pot Pie.


You can also use it on its own -- just add water, blend, and heat -- to make a simple vegan cream sauce, delish over roasted veggies! 

ABOUT leeks

  • Leeks have a mild onion-like flavour. They are in the same family as onions, shallots, scallions, chives, and garlic. 
  • To prepare them, cut off the roots and peel off the tough outer layer(s). Cut across the leeks to make ring-shaped pieces.
  • Be sure to clean the leeks thoroughly -- it's sometimes hard to see the dirt hiding between the leaves. Put the leeks in a colander and rinse them well with warm water. 

Ingredients

This soup uses just a few ingredients: 

  • Broccoli: I used fresh broccoli for this soup, but I think frozen will also work. You will likely have to increase the cooking time if using frozen.
  • Leeks: Leeks are a mildly-flavoured member of the Allium family [Source] that look somewhat like giant green onions. Although they both taste onion-y, they don't make good substitutes for each other. Leeks are tougher and are usually eaten cooked, while green onions taste better raw, and can get slimy when cooked. If you can't find leeks, the next best option is shallots. 
  • Lemon juice and lemon zest: These really brighten up the soup!   
  • Garlic: I used just one clove of garlic to add some nuance. You could omit it, or use about 1/4 teaspoon of garlic powder if you don't have any fresh garlic. 
  • Plant-milk:  Any type of unflavoured, unsweetened plant milk should work. 
  • Mother Mix: The Mother Mix is a simple DIY dry mix that you can make in minutes and store in your pantry. In this recipe, it helps make the soup rich and creamy, and also adds some protein
Top-down close up view of Creamy Lemon Leek and Broccoli Soup. The soup is in a white bowl and it is decorated with lemon slices and leek rings.

Visual Overview: Making Creamy Lemon Leek and Broccoli Soup 

You can leave this as a chunky soup, or if you want it creamier, you can puree it with a blender or immersion blender.

Step 1: Cook the leeks.

Heat the margarine and then add the leeks. 

Top-down view of leeks in a white soup pot, with margarine

Making Lemony Leek and Broccoli Soup

Saute over medium heat for about 10-12 minutes, until softened and slightly browned. 

Top-down view of sauteed leeks in a white soup pot, with margarine

Making Lemony Leek and Broccoli Soup

Step 2: Add the broccoli, milk, Mother Mix, and garlic.

Add all remaining ingredients, except the lemon juice and zest. 

Top-down view of broccoli, Mother Mix, garlic added to the soup pot.

Making Lemony Leek and Broccoli Soup

Bring to a low boil.

Top-down view of Lemony Leek and Broccoli Soup at a low boil

Making Lemony Leek and Broccoli Soup

Reduce the heat and cover with a lid. After about 10 minutes, test whether the broccoli is fork tender. If not, continue cooking until you can easily pierce the broccoli. 

Step 3: Add lemon juice and zest.

Stir in the lemon juice and zest. 

Top-down view of adding lemon juice and zest to Lemony Leek and Broccoli Soup

Making Lemony Leek and Broccoli Soup

If you want to eat the soup as is (unblended), taste and add more lemon, and salt and pepper as desired. 

Optional Step 4: Blend some or all of the soup.

 You can blend all or some of the soup. We used an immersion (hand) blender to blend ours. Be careful when blending hot soup. 

Top-down view of blending the soup with an immersion blender
Top-down view of blended Lemony Leek and Broccoli Soup

Lemony Leek and Broccoli Soup

Taste and add more lemon, and salt and pepper, as desired.

Top-down close up view of Creamy Lemon Leek and Broccoli Soup. The soup is in a white bowl and it is decorated with lemon slices and leek rings.

Related Recipes

Pin for Lemony Leek and Broccoli Soup

Recipe Card

Lemony Leek and Broccoli Soup - Vegan

Prep Time 10 minutes
Cook Time 25 minutes
Servings 8 cups
Calories 222 kcal
Author Sylvia

Ingredients

  • 6 tablespoons margarine
  • 2 cups leeks, chopped into fine rings
  • 6 cups broccoli, chopped
  • 4 cups unsweetened plant-milk
  • 2 cloves garlic, crushed
  • 1 cup Mother Mix
  • 6-8 tablespoons lemon juice
  • 1/2 teaspoon lemon zest

Instructions

  • Heat the margarine and add the leeks. Saute on medium heat for about 10-12 minutes, or until softened and browning slightly.
  • Add the broccoli, milk, garlic and Mother Mix. Bring to a boil, then reduce heat and simmer, covered. After 10 minutes, check to see if the broccoli is fork tender. If not, cook until it is.
  • Add the lemon juice and zest.
  • Add salt and pepper to taste.

If you want to blend part or all of the soup

  • Use an immersion blender, or transfer to a countertop blender. It's a good idea to let the soup cool down a bit before blending it. Hot soup exploding out of the blender can be very dangerous.

Notes

Storage and Reheating

Store in a well-sealed container in the fridge for 2-3 days. Reheat over low heat. Add plant-milk as necessary to thin it out. 

Nutritional Information

Nutritional information is an estimate only. 

Nutrition

Serving: 1cup | Calories: 222kcal | Carbohydrates: 16g | Protein: 8g | Fat: 16g | Saturated Fat: 2g | Polyunsaturated Fat: 4g | Monounsaturated Fat: 5g | Sodium: 372mg | Potassium: 426mg | Fiber: 4g | Sugar: 3g | Vitamin A: 1410IU | Vitamin C: 66mg | Calcium: 220mg | Iron: 2mg

Courses, Cuisines, and Keywords

Course
dinner
|
dinner, lunch, side
|
lunch
|
Soup
Cuisine
American
Keywords
broccoli soup
|
leek
|
lemon

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Hello!


We're creating a course: Baby Steps to Plant-Based Eating

Yes, seriously. Trying a plant-based diet can be overwhelming and we'd like to help. 

This course is for you if: 

  • you're curious about plant-based eating, but don't know where to start 
  • you have family or friends who eat plant-based and you'd like to be able to cook for them
  • you've dabbled with plant-based cooking, but would like to expand your repertoire 

Baby Steps to Plant-Based Eating will: 

  • answer your pressing questions
  • cultivate your confidence 
  • arm you with recipes

Want to learn more?  

Join our email list for updates about the course launch. You'll also get priority access to new recipes, and other subscriber privileges.