Slow Cooker Spanish Chorizo and Seafood Couscous Paella

Steps

1. 1

   Bloom saffron

   • Place the saffron threads in a small bowl.
   • Pour 1/4 cup (60 ml) of warm broth over the threads and let them steep for 5 minutes.
   • The liquid will transform into a deep golden hue as the saffron releases its flavor, color, and aromatic compounds.
   • Set aside.

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   Ready when: Broth has turned deep golden yellow

   Tip: Blooming saffron before adding it to the slow cooker ensures its flavor and color distribute evenly throughout the dish

2. 2

   Prep vegetables and chorizo

   • While saffron steeps, dice the onion into 1/4-inch (6 mm) pieces, mince the garlic finely, and dice both bell peppers into 1/2-inch (1.3 cm) chunks.
   • If using fresh tomatoes, dice them; if using canned, have them ready to drain.
   • Dice the Spanish chorizo into small cubes about 1/4-inch (6 mm) on each side.
   • Measure out the remaining 3.75 cups (900 ml) of broth and set aside.
   • Thaw the peas if you have time, or have them ready to add frozen (the slow cooker will thaw them).

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   Ready when: All vegetables are evenly diced and chorizo is cubed

   Tip: Prepping everything before you start ensures you won't scramble later; mise en place is your friend in slow cooker cooking

3. 3

   Sauté chorizo until browned

   • Heat 2 tbsp (30 ml) olive oil in a large skillet over medium-high heat.
   • Add the diced chorizo and cook for 4–5 minutes, stirring occasionally.
   • The edges should turn light brown and the fat will render into the oil, creating a fragrant, rich base.
   • This step develops the chorizo's smoky, deep flavor and ensures it distributes throughout the paella.

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   Ready when: Chorizo edges are lightly browned and fat has rendered into the oil

   Tip: Don't skip searing the chorizo—even though everything goes into the slow cooker, this step caramelizes the meat and enriches the oil, which is essential for authentic paella flavor

4. 4

   Layer ingredients in slow cooker

   • Transfer the browned chorizo and all its rendered fat to a 5–6 quart (5–6 L) slow cooker.
   • Add the prepared onion, garlic, bell peppers, tomatoes, and peas.
   • Spread the pearl couscous evenly over the vegetables and chorizo layer.
   • Slowly pour the remaining 3.75 cups (900 ml) of broth over the couscous, including the bloomed saffron with its golden liquid.
   • Sprinkle 1 tsp (3 g) smoked paprika over the mixture.
   • Using a fork or wooden spoon, gently stir everything together until the couscous is just covered by liquid—aim for the broth to come about 1/2 inch (1.3 cm) above the top of the couscous.
   • Taste and add salt and pepper sparingly (store-bought broth is often salty; you can always add more later).

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   Ready when: All ingredients are combined; couscous is mostly submerged in liquid, with a thin layer of liquid above it

   Tip: Aim for a 2:1 liquid-to-couscous ratio (4 cups broth to 2 cups dry couscous) for tender, fluffy results without mushiness. If liquid doesn't cover the couscous, add a splash more warm broth

5. 5

   Cook paella base on low

   • Cover the slow cooker and set it to LOW heat.
   • Cook for 4 hours.
   • The liquid will gradually reduce and the couscous will absorb it, becoming tender and fluffy.
   • At the 3.5-hour mark, open the slow cooker and check the consistency.
   • If it still looks very wet (like a thick soup), leave the lid cracked slightly (or place a paper towel under the lid) for the final 30 minutes to allow excess moisture to evaporate.
   • The finished paella should be moist but not soupy—similar to risotto.
   • The vegetables should be soft, the chorizo should have distributed its flavor, and the saffron should have created a warm golden hue throughout.

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   Ready when: Couscous is tender and fluffy; most of the liquid has been absorbed (a small amount of moisture remaining is fine)

   Tip: Pearl couscous is larger and sturdier than regular couscous, so it can withstand 4 hours on low without becoming mushy—but do not exceed this time. Every slow cooker is different; if yours runs hot, check at 3 hours

6. 6

   Add shrimp and mussels

   • Using a fork, gently stir the paella base to loosen the couscous and distribute the flavors.
   • Arrange the peeled shrimp and cleaned mussels on top of the couscous, nestling them in gently without completely burying them—you want them to cook evenly and the shells to open.
   • Cover the slow cooker and cook on LOW for 15–20 minutes.
   • The shrimp will turn opaque and pink, and the mussels will open wide.
   • Check at the 15-minute mark; mussels often open faster than shrimp finish cooking.

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   Ready when: Shrimp are opaque and pink (internal temperature 145°F / 63°C); mussels are wide open. Discard any mussels that remain closed

   Tip: Use a gentle hand when adding seafood—don't stir vigorously or the shrimp will break apart and become mushy. Any mussels that don't open are dead and should be discarded

7. 7

   Finish and serve

   • Turn off the slow cooker.
   • Stir in 3 tbsp (12 g) fresh chopped parsley and squeeze in the juice from 1 lemon.
   • Taste the paella and adjust seasoning with salt and pepper—the lemon should brighten the flavors and balance the richness of the chorizo.
   • Ladle the paella into bowls or onto plates, ensuring each serving contains couscous, chorizo, vegetables, and a portion of both shrimp and mussels.
   • Serve immediately while hot, with lemon wedges on the side for extra brightness.

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   Ready when: All components are hot and flavors are bright and balanced

   Tip: The fresh lemon juice is essential—it cuts through the richness of the chorizo and saffron, brightening the dish. Don't be shy with salt; a final taste and pinch of fleur de sel can make all the difference