This slow cooker 4-ingredient garlic butter shrimp is the kind of weeknight recipe you lean on when you’re tired but still want something that tastes like you planned ahead. You literally pour melted butter and three pantry-friendly ingredients over a bag of frozen shrimp in the slow cooker, turn it on, and walk away.
Garlic butter shrimp shows up in many coastal cuisines—think scampi in Italy or buttery shrimp boils in the American South—but here we’re stripping it down to its essentials so it works in a busy Midwestern kitchen on a Tuesday night.
Serve the garlic butter shrimp spooned over hot cooked rice, buttered egg noodles, or a bed of creamy mashed potatoes so all that garlicky butter has something to soak into. A simple green side—steamed broccoli, roasted asparagus, or a crisp salad with a tangy vinaigrette—keeps the plate balanced.
If you enjoy a bit of crusty bread, it’s perfect for mopping up the sauce. A light white wine like Sauvignon Blanc or Pinot Grigio pairs nicely, but sparkling water with lemon is just as refreshing alongside this rich, buttery dish.
Slow Cooker 4-Ingredient Garlic Butter Shrimp
Servings: 4
Ingredients
2 pounds raw frozen shrimp, peeled and deveined (tail-on or tail-off)
1 cup salted butter, melted (2 sticks)
4 large garlic cloves, minced (or 1 1/2 tablespoons jarred minced garlic)
1 teaspoon kosher salt
1 teaspoon dried Italian seasoning (or dried parsley, basil, or oregano)
Directions
Place the raw frozen shrimp in an even layer in the bottom of a 4- to 6-quart slow cooker. Do not thaw the shrimp first; they should go in straight from the freezer.
In a small bowl or measuring cup, combine the melted butter, minced garlic, kosher salt, and dried Italian seasoning. Stir well so the garlic and herbs are evenly dispersed in the butter
Pour the melted butter mixture evenly over the frozen shrimp in the slow cooker, making sure to cover as much of the surface as you can. Use a spatula to gently nudge the shrimp so some of the seasoned butter slips underneath.
Cover the slow cooker with the lid and cook on LOW for 1 to 1 1/2 hours, or until the shrimp are just opaque and pink throughout. Cooking time can vary slightly depending on the size of the shrimp and how cold they are going in.
About halfway through cooking, gently stir the shrimp once to redistribute the garlic butter and ensure even cooking. Replace the lid promptly so you don’t lose too much heat.
As soon as the shrimp are fully pink and opaque, turn off the slow cooker to prevent overcooking. Overcooked shrimp become rubbery quickly, so start checking at the 1-hour mark.
Taste the garlic butter sauce and adjust seasoning if needed, adding a pinch more salt if your butter was unsalted or a splash of lemon juice if you’d like a brighter flavor.
Serve the shrimp immediately with plenty of the garlic butter spooned over the top, along with your choice of rice, pasta, or crusty bread to soak up the sauce.
Variations & Tips
You can tailor this four-ingredient base to suit your kitchen and your mood without complicating the process. For more heat, stir 1/4 to 1/2 teaspoon crushed red pepper flakes into the melted butter before pouring it over the shrimp.
If you prefer a brighter, more Mediterranean profile, add the finely grated zest of 1 lemon to the butter mixture and finish the cooked shrimp with a squeeze of fresh lemon juice and a handful of chopped fresh parsley. To lean into a Cajun direction, swap the Italian seasoning and salt for 2 teaspoons of your favorite Cajun or Creole seasoning (be mindful of salt levels in blends).
For a slightly lighter dish, you can use 3/4 cup melted butter plus 1/4 cup olive oil instead of all butter, which still gives richness but with a bit more balance. If your shrimp are very large (like U-15 or U-10), expect the cook time to be closer to 1 1/2 hours; smaller shrimp will cook faster, so start checking them earlier.
Food safety tips: Always start with shrimp that are labeled safe for cooking from frozen; most individually quick frozen (IQF) bags from reputable brands are fine. Keep the shrimp frozen until you’re ready to add them to the slow cooker so they don’t linger in the temperature “danger zone” (40°F–140°F)
