Course | Dinner / Lunch Dish Type | Soup

Lemony Roasted Fennel & White Bean Soup with Crispy Garlic

Prep 20 minutes
Cook 40 minutes
Total 1 hour
This creamy vegan soup gets its silky body from blended cannellini beans, not cream. Roasted fennel and onion add a mellow, sweet depth; lemon keeps the flavor light. Finish each bowl with a little crisp garlic and parsley for an inviting contrast of smooth soup and delicate crunch.
Creamy lemony roasted fennel and white bean soup in a green ceramic bowl, topped with crisp golden garlic chips and fresh herbs.

Roasted fennel lends gentle sweetness to a velvet-smooth white bean soup, brightened with lemon and topped with crisp golden garlic. It is a beautiful, comforting bowl for cool evenings—simple ingredients treated with just enough care to taste wonderfully special.

Warmly lit bowls of creamy roasted fennel and white bean soup topped with crisp garlic, parsley and fennel fronds, with fresh lemon and fennel on a wooden table.

The softness of roasted fennel

Fennel rarely gets the starring role in a bowl of soup, and that is exactly what makes this one a little discovery. Raw fennel has a pronounced aromatic character; after roasting, its wedges turn sweet, mellow and nearly buttery. Blended with white beans, it becomes a pale golden soup that feels especially comforting when finished with fresh lemon.

Roasting changes everything

Instead of cooking every vegetable directly in the broth, the fennel, onion and garlic begin on a hot sheet pan. Their edges brown while their centers soften, bringing a gentle sweetness a quick stovetop simmer cannot quite reproduce. Watch the garlic: it needs softness and golden color, never the bitter edge of a burnt clove.

The texture trick is already in the pantry

Cannellini beans carry enough starch and body to make a genuinely silky soup without coconut milk or heavy ingredients. Blend thoroughly, then decide whether you prefer a velvety spoon-coating texture or a lighter pour. The right amount of liquid depends on the size of the fennel and how thoroughly you drain your beans, so adjust gradually rather than all at once.

A little bright, a little crisp

Fresh lemon belongs in the finished soup rather than the roasting pan. Its aroma lifts the mellow fennel and bean base. Thin garlic chips, made carefully in a small skillet, create an exciting contrast against the smoothness; parsley or a few reserved feathery fennel fronds add color without distracting from the main flavor.

The kind of soup worth making twice

Serve with warm gluten-free bread for dipping, or tuck a bowl beside a leafy salad for lunch. The soup holds beautifully in the refrigerator and freezes without the finishing garlic. Once the combination of roast, simmer and blend feels familiar, it becomes a useful way to celebrate other mellow vegetables while staying grounded in a simple bean-based supper.

For another smooth soup with a crisp finishing touch, try our Creamy Carrot & Red Lentil Curry Soup with Crispy Onions.

Creamy lemony roasted fennel and white bean soup in a green ceramic bowl, topped with crisp golden garlic chips and fresh herbs.
Rachelle Johnson

Lemony Roasted Fennel & White Bean Soup with Crispy Garlic

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This creamy vegan soup gets its silky body from blended cannellini beans, not cream. Roasted fennel and onion add a mellow, sweet depth; lemon keeps the flavor light. Finish each bowl with a little crisp garlic and parsley for an inviting contrast of smooth soup and delicate crunch.
Prep Time 20 minutes
Cook Time 40 minutes
Total Time 1 hour
Servings: 4 generous bowls
Course: Dinner, Lunch
Cuisine: Global / Fusion
Suitable For
Gluten Free
Vegan
Cook View

Ingredients
  

Roasted soup base
  • 2 medium fennel bulbs about 1 lb, trimmed and cut into wedges; reserve a few fronds
  • 1 medium yellow onion cut into wedges
  • 4 garlic cloves peeled
  • 1 ½ tbsp olive oil
  • ½ tsp fine sea salt
  • ¼ tsp black pepper
  • 2 15-oz cans cannellini beans, rinsed and drained
  • 3 cups low-sodium vegetable broth
  • 1 tsp finely grated lemon zest
  • 2 tbsp fresh lemon juice plus more to taste
Crispy garlic finish
  • 2 garlic cloves thinly sliced
  • 1 tbsp olive oil
  • 2 tbsp finely chopped fresh flat-leaf parsley
  • Reserved fresh fennel fronds optional

Equipment

  • Large rimmed pan
  • blender or immersion blender
  • soup pot
  • small skillet

Method
 

  1. Heat oven to 425°F. Trim fennel stems, remove any tough outer layers, and cut bulbs into thin wedges. Spread fennel, onion and four peeled garlic cloves on a rimmed pan; toss with 1 1/2 tablespoons oil, salt and pepper.
  2. Roast 25–30 minutes, turning once, until the fennel is tender, edges are browned and garlic is soft. Pull the cloves out early if they begin darkening.
  3. Transfer roasted vegetables to a soup pot with beans and vegetable broth. Simmer gently for 8 minutes so the flavors meld.
  4. Blend with an immersion blender until completely smooth, or carefully blend in batches with the lid vented and a towel held over it. Return to the pot and warm over low heat.
  5. Stir in lemon zest and 2 tablespoons lemon juice off heat. Taste before adding salt; broth and beans can vary considerably in sodium. Add hot water a splash at a time if too thick.
  6. Warm 1 tablespoon oil in a small skillet over medium-low heat. Add thinly sliced garlic and cook 1–2 minutes, stirring constantly, until pale golden, then transfer to a plate immediately so it does not burn.
  7. Ladle soup into warm bowls, sprinkle with crisp garlic and parsley, add fennel fronds if available, and offer lemon at the table.

Nutrition

Calories: 297kcalCarbohydrates: 44gProtein: 13gFat: 9gSaturated Fat: 1gPolyunsaturated Fat: 1gMonounsaturated Fat: 7gSodium: 360mgPotassium: 1159mgFiber: 11gSugar: 7gVitamin A: 323IUVitamin C: 23mgCalcium: 173mgIron: 5mg

Notes

Selecting fennel: Choose firm bulbs without dark soft spots. Roasting mellows its anise-like aroma, so the finished soup tastes savory and gentle rather than sharply licorice-like.
Blending safely: Blend hot soup in small batches if using a countertop blender. Vent the lid to release steam and never fill the pitcher to the brim.
Cream without cream: The cannellini beans provide body. For a looser texture add warm broth by the tablespoon; for a spoon-coating soup let it simmer uncovered for a few minutes before adding the lemon.
Garlic topping: Pale golden is the sweet spot; garlic darkens rapidly in residual oil and can turn bitter. Transfer it out of the pan as soon as it colors.
Make ahead: Roast the vegetables up to a day ahead and refrigerate. The fully blended soup also develops depth overnight; add fresh lemon and crisp garlic after reheating.
Storage and freezing: Chill promptly and refrigerate up to 4 days, or freeze the soup without toppings up to 2 months. Thaw in the refrigerator, simmer until steaming and loosen with broth if needed.

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