Shrimp in Rundown Sauce With Cavatelli

Updated Oct. 12, 2023

Shrimp in Rundown Sauce With Cavatelli
Alex Lau for The New York Times. Food Stylist: Susie Theodorou.
Total Time
45 minutes
Prep Time
10 minutes
Cook Time
35 minutes
Rating
4(244)
Notes
Read community notes

Richly flavored rundown, popular across the Caribbean, is the result of gently simmering seafood in coconut milk and tomatoes with aromatics such as scallions, onion and garlic until the flavors are concentrated and intense. Some say it gets its name from the way it lightly runs down and coats any starch or protein with which it comes into contact. At her restaurant, Bywater American Bistro, the chef Nina Compton tosses shrimp and house-made gnocchi with a rundown sauce made with the shrimp shells and scented with ginger and lemongrass. Here it’s served with cavatelli or shell pasta and is every bit as delicious. Lime zest plus a garnish of mixed soft herbs such as basil, chives and dill brighten the dish and add a hint of freshness. —Yewande Komolafe

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Ingredients

Yield:Serves 4 to 6
  • pounds jumbo shell-on shrimp
  • 2tablespoons neutral oil, such as canola
  • 2tablespoons grated fresh ginger (from a 2-inch piece)
  • 2lemongrass stalks, trimmed, tough outer layers removed and tender centers sliced lengthwise and smashed with the back of a knife
  • 2garlic cloves, smashed and peeled
  • Salt
  • ¼cup tomato paste
  • 1(13.5-ounce) can coconut milk
  • 1pound cavatelli or medium shell pasta
  • 4scallions, thinly sliced
  • 1lime
  • 2tablespoons unsalted butter, room temperature
  • ½cup mixed soft herbs, such as dill, basil and chives, chopped
Ingredient Substitution Guide
Nutritional analysis per serving (6 servings)

334 calories; 23 grams fat; 15 grams saturated fat; 0 grams trans fat; 5 grams monounsaturated fat; 2 grams polyunsaturated fat; 10 grams carbohydrates; 1 gram dietary fiber; 2 grams sugars; 26 grams protein; 545 milligrams sodium

Note: The information shown is Edamam’s estimate based on available ingredients and preparation. It should not be considered a substitute for a professional nutritionist’s advice.

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Preparation

  1. Step 1

    Prepare the rundown sauce: Peel and devein the shrimp, reserving the shells and refrigerating the shrimp. Heat 1 tablespoon oil in a large Dutch oven or skillet over medium-high. Add the ginger, lemongrass and garlic and cook, stirring frequently, until the lemongrass is just beginning to soften, about 2 minutes. Add the shrimp shells, season lightly with salt and cook, stirring, until the shells turn pink, 2 to 4 minutes.

  2. Step 2

    Add the tomato paste, reduce the heat to medium, spread the paste in the Dutch oven and cook until it darkens in color, 1 to 2 minutes. Add the coconut milk, stirring to dissolve the tomato paste. Add enough water to completely submerge the shrimp shells (about ¾ cup).

  3. Step 3

    Bring the liquid to a boil. Simmer, pressing down on the shells frequently, until the stock is reduced to three-quarters of its original volume, 12 to 15 minutes. Strain through a sieve into a liquid measuring cup, pressing down on the solids to get out as much liquid as you can. Reserve the Dutch oven.

  4. Step 4

    Meanwhile, bring a pot filled with generously salted water to a boil. Cook the pasta until al dente. Reserve 1 cup pasta water and drain the pasta.

  5. Step 5

    Set the reserved Dutch oven over medium heat and heat the remaining 1 tablespoon oil. Add the scallions, season lightly with salt and cook until softened, about 1 minute. Add the rundown sauce, increase the heat to medium-high and add the shrimp. Season lightly with salt and stir to coat the shrimp in sauce. Add the pasta and cook, stirring, until the shrimp are cooked through, 3 to 5 minutes. If at any point the liquid starts to dry out before the shrimp is cooked through, use the reserved pasta water (about ¼ cup at a time) to loosen up the sauce and prevent the pasta from burning or sticking to the bottom of the Dutch oven.

  6. Step 6

    Remove from heat, zest the lime directly over the pasta and slice the lime into wedges. Add the butter to the pasta and stir to coat. Serve immediately, with a shower of mixed herbs and the lime wedges for squeezing.

Ratings

4 out of 5
244 user ratings
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Cooking Notes

I've cooked for many decades. I've over cooked shrimp more often than I care to admit. When a recipe has three things going on- thickening the sauce, finishing the cooking of the al dente pasta and cooking the shrimp, all in the same pot, the chance of this occurring in the same amount of time is slim. The big loser, of course would be the shrimp. To avoid this, I will saute the shrimp until just done and reserve. When the pasta and sauce are done, I will add the shrimp to rewarm.

I made it, without the butter and reserve pasta water, because I had no idea what to do with them. There was plenty of sauce without them.

I think the butter gets stirred into the pasta and sauce at the end. Reserved pasta water to be added to sauce if needed? But should have stated that if one is not used to using it.

Could some math major please tell me what amount of stock I'm looking for when I've reduced a can of coconut milk and about 3/4 cup of water (plus all the aromatics) to about 3/4 of its original volume? Thanks!

When is the reserved pasta cooking water added? It's not mentioned again in the recipe.

The Dutch oven seems to have become a skillet. Perhaps a deep skillet?

I had seafood stock already in my freezer so used 1 cup of that instead of making the sauce with shells. And agree that shrimp are overcooked if you follow the directions…either take them out or add later.

Beautiful velvety sauce from this recipe; absolutely gorgeous dish. A showstopper yet easily made.

Made this tonight. It needs heat so we supplemented the dish with some Choula hot sauce. I did add three cloves of chopped garlic to the 6 scallions I used and used basil as my herb. I did just squeeze the lime over the dish, and we are happy campers. Very nice

I used shrimp with the heads and during the shelling process removed the heads to add to the sauce. It added so much delicious shrimpy flavor.

The end result was ok but it was time consuming and dirtied a lot of dishes - not sure I would bother making it again.

I made with 1 lb shrimp and ½ lb pasta - very nice proportions for 2 people. I added ¼ tsp of a homemade ghost pepper sauce a friend made. It was perfect. It wasn't noticeably hot, but after a few bites my mouth was pleasantly warm and happy.

loved this recipe! made a couple of tweaks: 1. I added a little sugar as the sauce simmered for a bit of sweetness and balance, and it was great! 2. I am usually a huge citrus fan, but found the lime at the end sort of distracting 3. next time i am going to give the shrimp a rough chop, so that it incorporates into the sauce a little better.

This was quite delicious. It’s a bit labor intensive so it’s not really something that I would make multiple times a month, but it’s well worth the effort. It definitely needs some heat, so next time I will be adding quite a bit of red pepper flakes, or if I’m feeling really adventurous some scotch bonnet peppers. I think the lime zest and lime juice at the end set this dish over the edge. I didn’t think the herbs at the end were necessary, so I’ll probably skip that step next time.

I followed the recipe exactly except for halving it (proportions were the same). Really wanted to like it, but it was incredibly bland. Far too much work for very little flavor, IMO.

What kind of coconut milk should be used?

Made this largely as is, other than a few minor tweaks for preference (more ginger/lemongrass) and added some rainbow chard. Was really impressed with how much flavor came out of the shells so quickly. Next time will probably use a little more coconut milk and let it simmer and cook down even longer.

I mean wow. Just wow.

As noted by several others, there was no further mention of the saved cup of pasta water; and the "conversion" of the initially-mentioned large Dutch oven into a skillet (the photo helped with that!). Just eyeballing the reducing volume of liquid (including the ¾ cup of added water), I ended up with about 1¾ cup of sauce after sieving out the shells, etc. The other confusion (for me) was the direction to use 1 lb of dry pasta. I opted for 2 cups of dry pasta--16 oz--which weighed about ½ lb.

Excellent, made exactly as described. Our family likes a bit more kick to food, so at the table we added Cholula. I sprinkled some chili pepper flakes on.

Really enjoyed this. Adding chopped chard to the sauce just before the pasta and shrimp worked well. I didn't find that the shrimp overcooked. Peeling shrimp and then straining out the shells tipped this over into a little bit of a project dish for me; for a weeknight, I'll try to cheat by using peeled shrimp, reducing some clam nectar with the coconut milk, and just picking out the lemongrass instead of straining. I like the idea of adding a habanero or bird's-eye chili to the sauce.

Echoing others, I would not describe this as “richly flavored.” It was a pretty bland sauce. Probably could have benefited from a large amount of salt. I managed to simmer it down to a nice creamy texture/body, so I wouldn’t say it was thin. I served it over jasmine rice instead of pasta at the request of my family, and I kept expecting it to taste like a Thai curry and kept being disappointed.

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