Red Kidney Beans Borscht Recipe – Hearty Vegetarian Beet Soup

Red kidney beans borscht is a hearty vegetarian beet soup with a deep ruby-red broth, tender beans and shredded cabbage. This wholesome, meatless version of the classic Eastern European soup is ready in about 2 hours and feeds a big family on a budget.

I have been cooking borscht for years, and this version with beans is the one I make most often when I want something filling without any meat. The kidney beans give the soup real substance, so every spoonful feels like a proper meal rather than a light starter. The homemade vegetable stock builds a clean, savoury base, and the sautéed beets with tomato paste bring that signature deep colour and gentle tang. It keeps well in the fridge, tastes even better the next day, and works just as nicely for a quiet weeknight dinner as it does for a Sunday lunch with rye bread and sour cream on the table.

Ingredients for Red Kidney Beans Borscht

Here is what you need to make this red bean borscht from scratch, starting with a simple homemade vegetable stock and finishing with a rich, chunky soup.

For the vegetable stock:

• Carrot - adds natural sweetness and body to the stock.
• Onion (unpeeled) - the skin gives the broth a warm golden tint.
• Green pepper – brings a mild, fresh note to the base.
• Leek - adds a soft, oniony depth without any sharpness.
• Parsnip - lends a gentle earthy sweetness that rounds out the stock.
• Bay leaves - classic aromatic that ties all the vegetables together.
• Black peppercorns - add quiet warmth and a subtle background heat.
• Celery sticks - contribute a clean, herbal backbone to the broth.

For the borscht:

• Carrots - grated for a soft texture and natural sweetness in the soup.
• Onions - finely chopped so they melt into the sauté base.
• White cabbage - shredded to give the borscht that traditional chunky bite.
• Pre-boiled beets - grated for the vibrant red colour and earthy flavour.
• Tomato paste or tomato puree - deepens the colour and adds tang.
• Fresh tomatoes - grated rather than chopped, for a smoother sauce.
• Potatoes - the starchy element that makes the soup filling.
• Red kidney beans - the vegetarian protein that replaces the usual meat.
• Unsalted butter - used for sautéing, giving a rich, silky finish.
• Salt and black pepper - basic seasoning to bring everything into balance.
• Lemon juice or vinegar (optional) - a small splash lifts the flavour at the end.
• Garlic cloves, rye bread and sour cream - the traditional trio for serving.
• Fresh herbs - parsley or dill, added at the end for colour and freshness.

How to Serve and Store This Vegetarian Borscht Recipe

I always serve this borscht piping hot in deep bowls, with a generous spoon of cold sour cream stirred in at the table and a slice of rye bread on the side. A peeled raw garlic clove, eaten alongside the soup in the traditional way, really lifts the whole dish and is worth trying at least once. Chopped parsley or dill on top adds freshness and a pop of green against the deep red broth.

For storage, let the soup cool to room temperature, then transfer it to an airtight container and keep it in the fridge for up to 4 days. The flavour actually improves overnight, so leftovers are often even better. You can also freeze it in portions for up to 3 months, though the potatoes may soften a little after thawing. Reheat gently on the hob over a low heat until warmed through, and avoid boiling hard so the beans stay whole.

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Top Tips and Notes for the Best Red Kidney Beans Borscht

• Use pre-boiled beets for convenience and colour. Pre-boiled beets save a serious amount of time and give you a reliable, even texture every single time. Vacuum-packed cooked beets from the supermarket work perfectly here and are what I usually reach for on a busy weeknight.
• Do not skip the homemade vegetable stock. A shop-bought stock cube will do in a pinch, but homemade vegetable stock is what gives this soup its quiet, clean depth of flavour. Simmering carrots, onion, leek, parsnip, celery and green pepper together for over an hour pulls out a natural sweetness you simply cannot fake. You can make the stock a day ahead and keep it in the fridge, which also breaks the cooking into smaller, easier steps. Any leftover stock can be frozen and used for other soups, risottos or grain dishes during the week.
• Grate the tomatoes instead of chopping them. Grating fresh tomatoes on the large holes of a box grater gives you a smooth pulp without the skins. This means the tomato melts straight into the sauté and becomes part of the sauce rather than sitting as separate chunks. It is a small step that makes the finished borscht feel more traditional and properly rustic. Simply cut the tomato in half, hold the cut side against the grater and press firmly, and the skin will be left behind in your hand.
• Drain and rinse the canned kidney beans well. Canned red kidney beans come in a thick, starchy liquid that can make the soup cloudy and overly salty. Tip the beans into a sieve, rinse them briefly under cold running water and let them drain before adding them to the pan. This keeps the broth clear and lets you control the seasoning much more precisely. If you prefer to cook dried beans from scratch, soak them overnight and simmer until fully tender before they go anywhere near the borscht.
• Add the cabbage towards the end, not at the start. Shredded white cabbage only needs about 5 minutes in the hot soup to turn tender while keeping a gentle bite. If you add it too early, it will overcook, lose its fresh flavour and turn slightly grey and soft. The short cooking time also preserves some texture, which is really nice against the softer potatoes and beans. Shred the cabbage finely and evenly so it cooks at the same rate all the way through.
• Balance the flavour with a little acid at the end. A small splash of lemon juice or white vinegar right at the end brightens the whole pot and makes the beet flavour sing. Start with a teaspoon, stir it through, taste and decide whether you want a little more. Acid also helps lift the red colour and stops the soup from tasting flat or overly sweet from the beets. Go slowly here, because it is much easier to add more than to fix a soup that has tipped too sour.
• Let the soup rest before serving. Giving the finished borscht 10 minutes off the heat with the lid on is one of those small habits that makes a real difference. During this rest, the flavours settle, the broth clarifies a little and the beets release more of their colour into the liquid. This is also a great moment to prep your serving things, such as peeling garlic, slicing rye bread and chopping herbs. Borscht that has rested tastes more balanced and rounded than borscht served the moment it comes off the stove.

FAQ About Red Kidney Beans Borscht

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Red Kidney Beans Borscht – Hearty Vegetarian Beet Soup

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Red kidney beans borscht is a rich, vegetarian beetroot soup with tender beans, shredded cabbage and a deep ruby-red broth. Built on a homemade vegetable stock and finished with a simple beet sauté, this hearty one-pot meal is comforting, filling and perfect for cold days. Serve with sour cream, rye bread and a raw garlic clove for the classic experience.

Prep Time 20 minutes

Cook Time 1 hour 45 minutes

Additional Time 10 minutes

Total Time 2 hours 15 minutes

Ingredients

VEGETABLE STOCK INGREDIENTS

• 1 medium carrot, washed, cut in halves
• 1 medium onion, washed but unpeeled, cut in halves
• 1 green pepper, washed, halved and seeds removed
• 1 leek – white part only, chopped into 2–3 pieces
• 1 parsnip, washed and cut in halves
• 2 celery sticks, washed and roughly chopped
• 2–3 bay leaves
• 3–4 black peppercorns
• 3 litres (about 17 cups) cold water

FOR BORSHT

• 2 medium carrots, grated
• 2 onions, finely chopped
• ½ white cabbage, shredded
• 1 pack pre-boiled beets (3–4 medium beets), grated
• 2–3 tablespoons tomato paste or tomato puree
• 2 tomatoes, finely grated
• 4 medium potatoes, peeled and chopped
• 1 can red kidney beans, 400 g (14 oz), drained
• 50 g (3½ tbsp) unsalted butter
• Pinch of salt
• Pinch of black pepper
• Lemon juice or vinegar, to taste (optional)

FOR SERVING

• Garlic cloves
• Rye bread
• Sour cream
• Fresh herbs (parsley or dill)

Instructions

1. Put all the stock vegetables, bay leaves and peppercorns into a large soup pot and cover with 4 litres of cold water. Bring to a boil over a high heat, then reduce to low and simmer gently for 1 to 1.5 hours. Strain the stock through a fine sieve and discard the vegetables, then return the clear stock to the clean pot.
2. Bring the strained stock back to a boil. Add the peeled and chopped potatoes, lower the heat to medium and cook for 15 minutes while you prepare the rest.
3. Melt half of the butter in a large skillet over a medium heat. Add the chopped onions and grated carrots and sauté for 5 minutes, stirring occasionally. Stir in the tomato paste, grated tomatoes and grated beets, then add the remaining butter, a pinch of salt, a pinch of black pepper and the drained kidney beans. Mix well, cover with a lid and cook for 10 minutes.
4. Transfer the sautéed mixture into the pot with the potatoes and stir to combine. After 5 minutes, add the shredded cabbage and cook for another 5 minutes. Turn off the heat, cover and let the borscht rest for 10 minutes. Taste, season if needed and add a splash of lemon juice or vinegar if you like a brighter finish. Ladle into deep bowls, scatter with fresh herbs and serve with sour cream, rye bread and garlic cloves.

Notes

• For the richest colour, sauté the grated beets with the tomato and butter rather than adding them raw to the pot. The fat helps lock in the red pigment and softens the earthy flavour.
• If your beets are very small, use 4 instead of 3 so the flavour and colour stay strong. Pre-boiled vacuum-packed beets from the supermarket are perfect here.
• The soup tastes even better the next day, so do not worry about making it ahead. Cool fully, store in the fridge and reheat gently before serving.
• If you prefer a thicker soup, mash a few potato pieces against the side of the pot near the end of cooking. For a thinner soup, top up with a little extra hot stock or water.
• Always rinse the canned kidney beans before adding them, otherwise the thick brine can cloud the broth and make the soup taste overly salty.