This Slow Cooker Homemade Pastrami turns an ordinary beef brisket into tender, smoky, peppery deli-style meat with almost no hands-on work — and no smoker required. A bold pastrami-style spice rub does the flavor heavy lifting, the slow cooker does the rest, and an optional few minutes under the broiler sets that signature crust. Pile it on rye, build a Reuben, or slice it thin for snacking. It’s everything you love about a great deli counter, made right in your own kitchen.

Slow cooker homemade pastrami sliced thin and stacked on a wooden board
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If you’ve ever wanted real-deal pastrami flavor without days of curing or a backyard smoker, this slow cooker pastrami recipe is for you. With a simple spice rub, a good brisket, and your slow cooker (a Ninja Foodi Possible Cooker works beautifully too), you get juicy, deli-style pastrami with minimal effort.

It’s perfect for piling onto a classic Reuben sandwich, serving on a board with pickles and mustard, or slicing thin for the week’s lunches.

This one earns a permanent spot in the rotation alongside our other easy slow cooker recipes, and the leftovers are endlessly useful for sandwiches all week.

Sliced homemade pastrami with a black pepper and spice crust on a wooden cutting board

Why You’ll Love This Recipe

  • Easy and hands-off – The slow cooker does the work, just like our healthy crockpot meals that practically cook themselves.
  • No smoker, no curing – Smoky, peppery deli flavor from a simple spice rub.
  • Great for meal prep – Make a big batch for sandwiches, wraps, and salads all week.
  • Customizable heat – Dial the spice blend up or down to taste.
  • Crowd-pleaser – Homemade pastrami quietly upstages anything from the deli counter, and it’s perfect for a cold sandwich spread.

Ingredients You’ll Need

Ingredients needed for Slow Cooker Homemade Pastrami on kitchen table
  • Beef brisket – Flat cut is ideal for even, sliceable pieces.
  • Brown sugar – Balances the savory, peppery spices.
  • Black pepper – The backbone of classic pastrami flavor.
  • Paprika – Smoky-sweet color and depth (smoked paprika is great here).
  • Garlic powder – Savory richness.
  • Onion powder – Mild, sweet aromatic base.
  • Ground coriander – Earthy, citrusy, and essential to that deli taste.
  • Mustard seeds – Nutty, tangy pops of flavor.
  • Ground thyme – A little herbaceous earthiness.
  • Ground cumin – Warm and gently smoky.
  • Crushed red pepper flakes – Optional, for heat.
  • Beef broth – Keeps the meat moist and rich as it cooks.
  • Apple cider vinegar – A touch of tang to balance the richness.
  • Dijon mustard – For serving.
  • Rye bread – The classic base for pastrami sandwiches; a slice of homemade sourdough works too (optional).
  • Liquid smoke (optional) – 1 teaspoon stirred into the broth adds extra smoky depth if you like.

How to Make Slow Cooker Pastrami

Spice-rubbed beef brisket in a slow cooker, coated with brown sugar, black pepper, and pastrami seasoning

Step One: In a small bowl, mix the brown sugar, black pepper, paprika, garlic powder, onion powder, coriander, mustard seeds, thyme, cumin, and red pepper flakes (if using). Rub the blend all over the brisket, pressing it in so it sticks.

Step Two: Place the brisket in the slow cooker. Pour the beef broth and apple cider vinegar around (not over) the brisket so you don’t wash off the rub. Stir in the liquid smoke now if using. Cover and cook on LOW for 8–10 hours, until the meat is fork-tender.

Seasoned beef brisket in the slow cooker before cooking, topped with pastrami spice rub

Step Three: Remove the brisket and let it rest 10–15 minutes. For the cleanest deli-thin slices, chill it fully (even overnight) before slicing.

Step Four (optional but recommended): For that classic crust, set the rested brisket on a rack and broil or bake at 400°F for 5–10 minutes until the spice crust sets. Then slice thinly against the grain and serve on rye with Dijon, or alongside your favorite sides.

Tender slow-cooked pastrami sliced on a wooden cutting board, ready for sandwiches

Tips for the Best Slow Cooker Pastrami

  • Choose flat-cut brisket for even, easy-to-slice pieces; point cut works but slices less neatly.
  • Pour the liquid around the meat, not over it, so the rub stays put.
  • Low and slow is the whole game — LOW for 8–10 hours gives you tender, juicy results. HIGH tends to dry it out.
  • Chill before slicing for thin, deli-style slices; warm, just-cooked brisket falls apart.
  • Always slice against the grain to keep every bite tender.
  • Add liquid smoke (1 tsp) or use smoked paprika for extra smoky depth without a smoker.
  • Finish under the broiler for 5–10 minutes to set a real pastrami crust.
  • Save the cooking juices — store slices in a little of the liquid to keep them moist.

Variation: Make It From Corned Beef (Popular Shortcut)

Most deli-style slow cooker pastrami starts with store-bought corned beef, which is already brined and packed with flavor — it’s the same cut we use in our Air Fryer Corned Beef Brisket. To go this route: rinse a 3–4 lb corned beef brisket well to remove excess salt, pat dry, and rub it with the spice blend above. Add the corned beef’s included spice packet for extra authenticity, place it in the slow cooker with about 1 cup of water or beef broth, and cook on LOW for 8–10 hours. Chill, slice thin, and finish under the broiler. This gives you that fully cured, classic deli tang with even less effort.

Sliced slow cooker pastrami with a peppery crust on a wooden board, ready for sandwiches

How to Store and Use Leftovers

  • Refrigerator: Cool completely, then store in an airtight container up to 4–5 days. Keep slices in a bit of the cooking juices to stay moist.
  • Freezer: Wrap sliced pastrami tightly and freeze up to 2 months. Thaw in the fridge.
  • Reheating: Warm gently in a covered skillet with a splash of broth, or microwave wrapped in a damp paper towel to keep it juicy.
  • Leftover ideas: Pile it into Reuben fritters, chop it into a crispy corned beef–style hash, or stack it on a Jason’s Deli–style Reuben.

What to Serve With Slow Cooker Pastrami

Slow cooker pastrami is endlessly versatile. For the classic deli experience, build it into a Reuben on marble rye with Swiss, Thousand Island, and sauerkraut or pickles. Craving a fast-food twist? Our Arby’s copycat Reuben is a fun one to recreate with homemade pastrami.

For a heartier spread, pair it with crispy cheese fries, potato salad, or coleslaw. Want something lighter? A fresh green salad or roasted vegetables cut through the rich, smoky meat nicely.

Sliced slow-cooked pastrami with a peppery crust on a wooden cutting board, ready for serving

Slow Cooker Pastrami FAQs

Do I have to start with corned beef? No. This recipe uses a raw beef brisket and a spice rub for a no-cure, no-smoker version. If you’d prefer the traditional cured-deli flavor, use corned beef brisket and follow the variation above.

Can I cook it on HIGH instead of LOW? LOW is strongly recommended for tender, juicy pastrami. HIGH cooks too fast and tends to dry out the meat — the same low-and-slow logic behind our best crockpot dinners.

How do I get the thinnest slices? Let the meat cool — ideally chill it fully or overnight — then slice with a sharp knife against the grain.

Do I need liquid smoke? No, it’s optional. The spice rub and smoked paprika already build smoky flavor, but a teaspoon of liquid smoke deepens it if you like.

Can I make turkey pastrami instead? Yes — a few readers have asked! Use a 2–3 lb turkey breast and swap the beef broth for turkey or chicken broth. Reduce the cook time to about 4–6 hours on LOW and cook to an internal temperature of 165°F so it stays moist. The spice rub works just as well on turkey.

Can I freeze leftovers? Absolutely. Slice first, wrap tightly, and freeze up to 2 months. Thaw in the fridge before reheating.

What cut of brisket is best? Flat cut is easiest to slice cleanly. Point cut is fattier and more flavorful but slices less neatly.

More Easy Slow Cooker Recipes

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Slow Cooker Homemade Pastrami

Slow Cooker Homemade Pastrami

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Author: Laurie Fleming
Prep Time: 15 minutes
Cook Time: 8 hours
15 minutes
Total Time: 8 hours 30 minutes
Servings: 8 Servings
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Description

Slow Cooker Homemade Pastrami turns a beef brisket and a simple pastrami spice rub into tender, smoky, deli-style meat — no smoker and no multi-day curing required. Perfect for piling onto rye sandwiches or slicing thin for the week.

Ingredients 

  • 3 pounds beef brisket, preferably flat cut
  • 1/4 cup brown sugar
  • 2 tablespoons black pepper
  • 2 tablespoons paprika, smoked paprika recommended
  • 1 tablespoon garlic powder
  • 1 tablespoon onion powder
  • 1 teaspoon ground coriander
  • 1 teaspoon mustard seeds
  • 1/2 teaspoon ground thyme
  • 1/2 teaspoon ground cumin
  • 1/2 teaspoon crushed red pepper flakes, optional, for heat
  • 2 cups beef broth
  • 2 tablespoons apple cider vinegar
  • 1 teaspoon liquid smoke, optional, for extra smoky flavor
  • 1/4 cup Dijon mustard, for serving
  • Rye bread, for serving (optional)

Instructions

  • In a small bowl, mix the brown sugar, black pepper, paprika, garlic powder, onion powder, coriander, mustard seeds, thyme, cumin, and red pepper flakes (if using). Rub the mixture all over the brisket, pressing it in so it adheres.
  • Place the brisket in the slow cooker. Pour the beef broth and apple cider vinegar around the brisket (not over it), and stir in the liquid smoke if using. Cover and cook on LOW for 8–10 hours, until the meat is fork-tender.
  • Remove the brisket and let it rest 10–15 minutes. For deli-thin slices, chill fully or overnight before slicing.
  • (Optional) For a classic crust, set the brisket on a rack and broil or bake at 400°F for 5–10 minutes until the spice crust sets.
  • Slice thinly against the grain. Serve on rye bread with Dijon mustard, or enjoy with your favorite sides.

Equipment

  • Slow Cooker, or Ninja Foodi PossibleCooker PRO
  • Spoon

Notes

  • Corned beef variation: For traditional cured-deli flavor, substitute a 3–4 lb store-bought corned beef brisket. Rinse well, pat dry, rub with the spices (add the included spice packet), and cook on LOW 8–10 hours with about 1 cup water or broth.
  • Turkey version: Use a 2–3 lb turkey breast with turkey or chicken broth; cook on LOW 4–6 hours to an internal temp of 165°F.
  • Slicing: Always slice against the grain. Chilling first gives the thinnest, cleanest slices.
  • Nutrition is auto-calculated and should be treated as an estimate.

Nutrition

Serving: 1ServingCalories: 314kcalCarbohydrates: 10gProtein: 37gFat: 13gSaturated Fat: 5gPolyunsaturated Fat: 1gMonounsaturated Fat: 6gTrans Fat: 0.001gCholesterol: 105mgSodium: 451mgPotassium: 674mgFiber: 1gSugar: 7gVitamin A: 128IUVitamin C: 3mgCalcium: 39mgIron: 4mg

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