Shrimp and crab boil with broccoli brings seafood, potatoes, corn, and green vegetables together under a warm garlic Cajun butter sauce. The ingredients enter the pot in stages: potatoes first, then corn, crab and broccoli, and finally shrimp. That sequence gives the firmer vegetables time to cook without keeping the shrimp in boiling water for the entire meal.
The crab stage in this recipe reheats crab legs or clusters, so start with cooked crab and confirm the package instructions. Raw crab requires a different preparation and cooking time. Jump to the recipe card for the original amounts and cooking sequence.
Ingredients for Shrimp and Crab Boil with Broccoli
- 1 lb large shrimp, peeled and deveined or shell on
- 1 lb crab legs or crab clusters
- 2 ears corn, cut into thirds
- 1 lb baby potatoes
- 2 cups broccoli florets
- 1 lemon, sliced
- 4 tbsp butter
- 2 tbsp olive oil
- 6 cloves garlic, minced
- 1 tbsp Cajun seasoning
- 1 tsp Old Bay seasoning
- 1 tsp smoked paprika
- ½ tsp garlic powder
- ½ tsp onion powder
- ½ tsp black pepper
- ¼ tsp cayenne pepper, optional
- 1 tbsp lemon juice
- 2 tbsp seafood broth or chicken broth
- 2 tbsp fresh parsley, chopped
- Salt, to taste
Prepare everything before boiling
Scrub the baby potatoes and choose pieces of similar size. Cut the corn into thirds and divide the broccoli into florets that are easy to serve. Have the shrimp thawed, cleaned, and ready, whether you prefer peeled or shell-on shrimp. A large draining tool and a serving tray with raised edges make the final transfer easier.
Use cooked crab legs or clusters that fit comfortably in the pot. Check the label for thawing and reheating directions; the listed short crab stage is not a substitute for cooking raw crab. Thaw frozen seafood in the refrigerator. Keep it chilled until the vegetables have nearly finished cooking.
Build a balanced butter sauce
Cajun seasoning, Old Bay, smoked paprika, garlic powder, onion powder, and black pepper give the butter its flavor. Some blends contain substantial salt, so add extra salt only after tasting the sauce. Cayenne is optional. Broth adds a little liquid to help distribute the seasoning, while lemon juice and fresh parsley finish the mixture.
How to Make the Seafood Boil
1. Start with the potatoes
Bring a large pot of salted water to a boil. Add the baby potatoes and cook for about 12–15 minutes, until almost tender. Pierce one with a fork to check the center. They continue cooking with the other ingredients, but should no longer feel hard when the corn is added.
2. Add corn, crab, and broccoli
Add the corn and cook for another five minutes. Then add the cooked crab legs or clusters and broccoli, allowing about 4–5 minutes for the crab to heat through and the broccoli to become bright and tender. Follow the crab package’s reheating directions when they differ. Avoid forcing too much into a small pot, which makes even heating and draining difficult.
3. Cook the shrimp last
Add the shrimp and cook for about 2–3 minutes, checking the largest ones before draining. Their flesh should be firm and opaque through the center, consistent with FDA seafood guidance. Shrimp size and the amount in the pot affect the timing. Use doneness cues rather than leaving them in longer simply to follow a timer.
4. Make the garlic Cajun butter
Drain the seafood and vegetables thoroughly. In a large skillet, melt the butter with the olive oil over medium heat. Add the minced garlic and cook for about 30 seconds, until fragrant. Stir in the Cajun seasoning, Old Bay, smoked paprika, garlic powder, onion powder, black pepper, optional cayenne, lemon juice, and broth. Simmer gently for about two minutes.
5. Coat and serve
Arrange the drained ingredients in a large serving tray or bowl. Pour the warm butter sauce over the top and turn everything gently to distribute it. Support the broccoli rather than stirring aggressively, which can break the florets apart. Finish with parsley and serve with the sliced lemon. Spoon any sauce from the bottom of the tray over individual portions.
Tips for a Better Boil
Keep the ingredients close to the stove in their cooking order. This prevents the shrimp from waiting in the pot while you cut broccoli or open seasoning jars. Check the potatoes before adding more ingredients, since their size varies. If one component is ready early, lift it out with a slotted tool rather than overcooking it while another finishes.
Good draining matters as much as the sauce. Water collected in corn pieces or crab shells can dilute the garlic butter on the serving tray. For a smaller shrimp-and-corn dinner, try garlic butter shrimp and sweet corn skillet. For cabbage and sausage instead of crab, see shrimp and sausage cabbage skillet.
Serving, Storage, and Questions
Serve with crusty bread for the butter sauce and provide bowls for shells and corn cobs. Keep extra lemon nearby. Refrigerate leftovers promptly in shallow covered containers and reheat to 165°F. Separating bulky corn and potatoes from delicate shrimp can make portioning and reheating more manageable.
Can I make the sauce ahead?
You can measure the dry spices and mince the garlic ahead, keeping the garlic refrigerated. Make or gently warm the butter sauce close to serving so it pours easily over the drained seafood and vegetables.
Can I use frozen shrimp and crab?
Yes, just thaw both completely before adding to the boiling water for even cooking.
Can I add sausage to this boil?
Yes, sliced smoked sausage can be added along with the potatoes for extra flavor and heartiness.
Can I make this on a sheet pan instead of boiling?
Yes, you can roast the potatoes, corn, and broccoli, then add cooked shrimp and crab and toss everything with the garlic Cajun butter before serving.
Shrimp and Crab Boil with Broccoli Recipe Card
Shrimp and Crab Boil with Broccoli
Ingredients
Equipment
Method
- Bring a large pot of salted water to a boil. Add the baby potatoes and cook for 12 to 15 minutes, until almost tender.
- Add the corn to the pot and continue cooking for 5 minutes, until it begins to turn tender.
- Add the crab legs or crab clusters and broccoli florets. Cook for 4 to 5 minutes, until the crab is heated through and the broccoli is bright green and tender.
- Add the shrimp last and cook for 2 to 3 minutes, just until the shrimp are pink and cooked through. Drain the shrimp, crab, potatoes, corn, and broccoli well.
- Melt the butter with the olive oil in a large skillet over medium heat. Add the minced garlic and cook for about 30 seconds, until fragrant.
- Stir in the Cajun seasoning, Old Bay seasoning, smoked paprika, garlic powder, onion powder, black pepper, cayenne pepper if using, lemon juice, and broth. Simmer for 2 minutes.
- Arrange the cooked shrimp, crab, corn, potatoes, and broccoli in a large serving tray or bowl. Pour the warm garlic Cajun butter sauce over everything and gently toss until well coated.
- Sprinkle with fresh parsley and serve hot with lemon slices. This shrimp and crab boil makes an easy seafood dinner loaded with buttery garlic shrimp, tender crab, vegetables, and bold Cajun flavor.