Blood is almost certainly one of the offal products that most divides opinions, and yet we recognize its deep roots in traditional cuisine. It possesses that humble, resourceful quality that gives us dishes with real character, like this blood sausage with onions.
We know. Today's recipe isn't for everyone, like many other dishes that include offal. But if you enjoy it and decide to give it a try, you'll see that making it properly, with a gentle heat and a good base of onions, is quite simple. You'll surely be surprised when you can effortlessly recreate that bar tapa or that dish your grandmother used to make.

Although, as with practically all traditional recipes, we have to tell you that there isn't just one definitive way to prepare it. While all versions share the common element of using a large amount of onion, as the name suggests, there are variations that give the blood sausage with onions different nuances without losing its essence.
For example, a very typical version is to season the dish well with oregano, which is the recipe we're sharing here. Then, in parts of the Levante region, it's quite common to find it with pine nuts, which add that crunchy texture and a toasted touch that's fantastic.
On the other hand, in many areas of Andalusia, they add cinnamon, just a pinch. A touch of Arabic influence that's surprising because it rounds out the dish and gives it a very particular aroma. There are also those who prefer it with a little fried tomato to complement the onion. Ultimately, it's up to your tastes and the version you're looking for.
Recipe Information
- Preparation time: 10 minutes
- Cooking time: 40 minutes
- Total time: 50 minutes
- Servings: 4
- Category: Main course
- Cuisine: Spanish
- Calories per serving (kcal): 368
Ingredients for Blood with Onions
- 500 g precooked blood (chicken, pork, or beef)
- 3 medium onions
- 2 or 3 cloves of garlic
- 100 ml olive oil
- 1 or 2 bay leaves
- Salt
- Ground black pepper
- 1 handful of pine nuts (optional)
- 1 pinch of cinnamon (for seasoning, optional)
- 2 or 3 tablespoons of tomato sauce (optional)
- Oregano to taste
- 125 ml white wine, red wine, or chicken broth

Easy Recipe Step-by-step

How to make blood sausage with onions
We begin preparing the recipe by cutting 500g of boiled blood (chicken, pork, or beef) into cubes approximately 2cm on each side. The pieces should all be roughly the same size so they cook evenly, but they don't need to be perfectly precise. Set aside.

Next, peel 3 medium onions and slice them thinly. Also peel 2 or 3 cloves of garlic, lightly crush them with a knife, and then cut them in half.

With everything ready, we heat 100 ml of olive oil in a large frying pan over medium-low heat. When it's hot, we add the onion, garlic, 1 or 2 bay leaves, and a pinch of salt.

Next, mix well and let it simmer over medium-low heat for 15 to 20 minutes, stirring frequently to prevent the onion from burning. Continue cooking patiently until the onion is well softened.

Once the onion is very tender and we see that it begins to take on color, it is time to add the cubed blood that we had previously set aside.

Gently mix the meat with the onion, from the bottom up, so as not to break it up too much. Continue cooking over medium-low heat and let the blood and onion cook thoroughly. About 15 minutes over medium heat should be enough.

Once it's ready, season with salt and pepper, and add oregano or any other spices you like. This is the time to add a handful of pine nuts, a pinch of cinnamon, or 2 or 3 tablespoons of the tomato sauce we mentioned in the introduction, depending on the version you're looking for. In this case, we used dried oregano.

Once the blood is mixed with the spices, turn up the heat and add 125 ml of white wine or, if you don't want to add alcohol, chicken stock is also fine.

Finally, we mix it well and let it reduce until it's juicy but with no loose liquid. We turn off the heat, let it rest for a couple of minutes, and serve.

Easy Preparation Summary
- Cut the blood into cubes
- Peel and slice the onion into julienne strips and halve the garlic cloves
- Heat the oil and add the onion, garlic, and bay leaf
- Sauté for 20 minutes over medium-low heat until softened
- Add the cubed blood to the pan
- Mix well and sauté for 15 minutes
- Season with oregano to taste and salt and pepper
- Add the wine or stock and mix well
- Reduce the liquid and let the blood and onions rest for 2 minutes before serving
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