Here is my favorite cajun garlic butter shrimp recipe, with plump shrimp tossed in a rich garlic butter sauce, seasoned with cajun spices, smoked paprika, and finished with a squeeze of fresh lemon.
This shrimp dish is a weeknight lifesaver at our house. It takes about 10 minutes from start to finish, and my kids actually ask for seconds. I usually serve it over rice or pasta to soak up all that garlicky butter goodness.
Why You’ll Love This Cajun Garlic Butter Shrimp
- Ready in under 20 minutes – This recipe is perfect for busy weeknights when you need dinner on the table fast but don’t want to sacrifice flavor.
- Simple ingredients – You only need a handful of basic ingredients that you probably already have in your kitchen, plus fresh shrimp.
- Restaurant-quality flavor at home – The combination of garlic butter and cajun seasoning gives you that bold, satisfying taste you’d expect from your favorite seafood spot.
- High-protein and low-carb – With shrimp as the star, this dish is naturally light and fits perfectly into keto or low-carb meal plans.
- Easy cleanup – Everything cooks in one pan, so you’ll spend less time scrubbing dishes and more time enjoying your meal.
What Kind of Shrimp Should I Use?
For this recipe, large shrimp work best since they’re easier to handle and won’t overcook as quickly as smaller ones. You can use either fresh or frozen shrimp – just make sure frozen shrimp are completely thawed and patted dry before cooking to avoid excess moisture in the pan. When shopping, look for shrimp that are already peeled and deveined to save yourself some prep time, though buying shell-on shrimp and doing it yourself can sometimes be more budget-friendly. Wild-caught or farm-raised will both work fine here, so just grab whichever fits your preference and budget.
Options for Substitutions
This recipe is pretty straightforward, but here are some swaps you can make if needed:
- Large shrimp: Medium shrimp work just fine here – just watch your cooking time and reduce it by a minute or two since they’ll cook faster. You can also use frozen shrimp, just make sure to thaw them completely and pat them dry before cooking.
- Butter: If you’re out of butter, ghee makes a great substitute and adds a slightly nutty flavor. For a dairy-free option, use extra olive oil, though you’ll miss out on that rich, buttery taste.
- Cilantro or parsley: These herbs are interchangeable in this recipe. If you’re not a fan of cilantro (or think it tastes like soap), parsley is your friend. Fresh chives or green onions also work in a pinch.
- Cajun seasoning: Don’t have cajun seasoning? Mix together paprika, garlic powder, onion powder, cayenne pepper, and a pinch of oregano and thyme. Start with less cayenne if you’re sensitive to heat.
- Olive oil: Any neutral cooking oil like avocado oil or vegetable oil works here. Just avoid oils with low smoke points since you’ll be cooking over medium-high heat.
Watch Out for These Mistakes While Cooking
The biggest mistake when cooking shrimp is leaving them in the pan too long, which turns them rubbery and chewy – they’re done as soon as they turn pink and form a C-shape, so pull them off the heat immediately.
Another common error is cooking shrimp straight from the package without patting them completely dry, which creates steam instead of a nice sear and dilutes your garlic butter sauce.
To get the best flavor, make sure your butter is truly at room temperature before mixing it with the garlic and seasonings, as cold butter won’t blend properly and you’ll end up with uneven seasoning throughout the dish.
Finally, don’t crank the heat too high when adding the Cajun butter – medium to medium-low heat gives the garlic time to release its flavor without burning, which would make the whole dish taste bitter.
What to Serve With Cajun Garlic Butter Shrimp?
This shrimp is packed with bold, spicy flavors, so I like pairing it with something that can soak up all that amazing garlic butter sauce. White rice or creamy grits are perfect for this – they balance out the heat from the cajun seasoning and make sure none of that buttery goodness goes to waste. If you want to add some veggies to the plate, roasted asparagus or sautéed green beans work really well, or you could toss the shrimp over a simple pasta like linguine or angel hair. A side of crusty French bread is also great for mopping up the extra sauce at the end.
Storage Instructions
Store: Keep your leftover cajun shrimp in an airtight container in the fridge for up to 2 days. Shrimp doesn’t last as long as other proteins, so it’s best to enjoy it pretty quickly after cooking.
Reheat: Warm up your shrimp gently in a skillet over medium-low heat for just a minute or two until heated through. You can also microwave it on 50% power in short bursts, but be careful not to overcook or the shrimp will get rubbery.
Make Ahead: I don’t recommend freezing cooked shrimp since it can get mushy when thawed. If you want to prep ahead, you can mix the garlic butter and seasoning together and keep it in the fridge, then just cook the shrimp fresh when you’re ready to eat.
| Preparation Time | 10-15 minutes |
| Cooking Time | 5-10 minutes |
| Total Time | 15-25 minutes |
| Level of Difficulty | Easy |
| Servings | 2 servings |
Estimated Nutrition
Estimated nutrition for the whole recipe (without optional ingredients):
- Calories: 550-650
- Protein: 80-90 g
- Fat: 25-30 g
- Carbohydrates: 1-3 g
Ingredients
For the shrimp:
- 1 lb large shrimp (peeled and deveined)
- 1/4 tsp salt
- 1 tbsp olive oil
- 1/2 tsp fresh lemon juice (added at the end)
For the cajun butter:
- 2 1/2 tbsp unsalted butter (room temperature)
- 2 garlic cloves (freshly minced)
- 1 1/2 tbsp cilantro or parsley (minced)
- 2 tsp cajun seasoning
- 1/4 tsp smoked paprika
Step 1: Prepare the Shrimp and Make the Cajun Butter
- 1 lb large shrimp
- 1/4 tsp salt
- 2 1/2 tbsp unsalted butter
- 2 garlic cloves
- 1 1/2 tbsp cilantro or parsley
- 2 tsp cajun seasoning
- 1/4 tsp smoked paprika
While the shrimp is your main ingredient, prep work is minimal here—that’s the beauty of this dish.
Lightly salt the shrimp in a colander, let it sit for 1 minute to help draw out excess moisture, then rinse and thoroughly pat dry with paper towels.
Dry shrimp will sear beautifully rather than steam.
While the shrimp dries, mince your garlic and herbs, then combine the room-temperature butter, minced garlic, minced cilantro or parsley, Cajun seasoning, and smoked paprika in a small bowl, stirring until well blended.
Having the butter mixture ready means you can work quickly once the shrimp hits the pan.
Step 2: Sear the Shrimp
- 1 tbsp olive oil
- shrimp from Step 1
Heat the olive oil in a large skillet over medium-high heat until it shimmers and just begins to smoke lightly—this ensures a good sear.
Add the dried shrimp in a single layer and let them cook undisturbed for about 1 minute.
I like to resist the urge to move them around; this initial rest develops a light golden crust on one side, which builds flavor.
The shrimp don’t need to be fully cooked at this stage—they’ll finish cooking when the butter is added.
Step 3: Finish with the Cajun Butter and Lemon
- Cajun butter mixture from Step 1
- 1/2 tsp fresh lemon juice
Lower the heat to medium, then add the Cajun butter mixture from Step 1 directly to the skillet.
Stir gently for 1 to 2 minutes, allowing the butter to melt and coat the shrimp while the residual heat finishes cooking them through.
The shrimp are done when they’re opaque and firm—they should curl slightly and reach an internal temperature of about 145°F.
Remove from heat and finish with a squeeze of fresh lemon juice, which brightens the rich, savory flavors of the butter and spices.
Serve immediately while the butter is still warm and glossy.
Quick Cajun Garlic Butter Shrimp
Ingredients
For the shrimp
- 1 lb large shrimp (peeled and deveined)
- 1/4 tsp salt
- 1 tbsp olive oil
- 1/2 tsp fresh lemon juice (added at the end)
For the cajun butter
- 2 1/2 tbsp unsalted butter (room temperature)
- 2 garlic cloves (freshly minced)
- 1 1/2 tbsp cilantro or parsley (minced)
- 2 tsp cajun seasoning
- 1/4 tsp smoked paprika
Instructions
- While the shrimp is your main ingredient, prep work is minimal here—that's the beauty of this dish. Lightly salt the shrimp in a colander, let it sit for 1 minute to help draw out excess moisture, then rinse and thoroughly pat dry with paper towels. Dry shrimp will sear beautifully rather than steam. While the shrimp dries, mince your garlic and herbs, then combine the room-temperature butter, minced garlic, minced cilantro or parsley, Cajun seasoning, and smoked paprika in a small bowl, stirring until well blended. Having the butter mixture ready means you can work quickly once the shrimp hits the pan.
- Heat the olive oil in a large skillet over medium-high heat until it shimmers and just begins to smoke lightly—this ensures a good sear. Add the dried shrimp in a single layer and let them cook undisturbed for about 1 minute. I like to resist the urge to move them around; this initial rest develops a light golden crust on one side, which builds flavor. The shrimp don't need to be fully cooked at this stage—they'll finish cooking when the butter is added.
- Lower the heat to medium, then add the Cajun butter mixture from Step 1 directly to the skillet. Stir gently for 1 to 2 minutes, allowing the butter to melt and coat the shrimp while the residual heat finishes cooking them through. The shrimp are done when they're opaque and firm—they should curl slightly and reach an internal temperature of about 145°F. Remove from heat and finish with a squeeze of fresh lemon juice, which brightens the rich, savory flavors of the butter and spices. Serve immediately while the butter is still warm and glossy.
