I finally cracked a Crockpot beef and broccoli method that uses pantry staples and one unexpected ingredient that changes how the sauce comes together.

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I love making takeout at home and this Easy Crock Pot Beef And Broccoli always tricks people into thinking I did something fancy. I used thinly sliced flank steak and bright broccoli florets, and the slow cooker somehow makes the beef melt in your mouth, not tough and chewy like other attempts.

I test a lot of Crockpot Recipes Easy, and this one kept surprising me every time I peeked in, like it had a secret it wasn’t ready to share. I won’t tell you the trick here, but if you like simple wins, you’ll want to try it.

Ingredients

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Beef brings the protein and iron, hearty flavor that keeps the dish satisfying.
Broccoli adds fiber, vitamin C, fresh crunch, a healthy counterpoint to rich beef.
Soy sauce gives salty umami, low sodium version keeps it healthier, but savory.
Brown sugar sweetens and balances soy, a little goes a long way.
Oyster sauce deepens umami and adds glossy, slightly sweet savory complexity.
Garlic and ginger give zing and warmth, sharp aromatics that cut richness.
Cornstarch makes the sauce cling to beef and broccoli, silky without heaviness.
Sesame oil lends nutty aroma, just a little gives big flavor boost.

Ingredient Quantities

1 1/2 to 2 pounds flank steak or skirt steak, thinly sliced

4 cups broccoli florets (about 1 head)

1/2 cup low sodium soy sauce

1/2 cup beef broth

1/4 cup packed brown sugar

2 tablespoons oyster sauce

1 tablespoon sesame oil

3 cloves garlic minced

1 tablespoon fresh ginger grated

3 tablespoons cornstarch

3 tablespoons cold water

1/4 teaspoon black pepper

2 green onions, sliced

1 to 2 tablespoons vegetable oil

How to Make this

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1. Partially freeze the flank or skirt steak for 20 to 30 minutes so it firms up, then slice thinly against the grain about 1/8 to 1/4 inch thick — this keeps the meat tender and easy to chew.

2. In a bowl whisk together 1/2 cup low sodium soy sauce, 1/2 cup beef broth, 1/4 cup packed brown sugar, 2 tablespoons oyster sauce, 1 tablespoon sesame oil, 3 cloves minced garlic, 1 tablespoon grated fresh ginger and 1/4 teaspoon black pepper until the sugar mostly dissolves.

3. Heat 1 to 2 tablespoons vegetable oil in a hot skillet and quickly sear the steak in batches 1 to 2 minutes per side just to brown and lock in flavor; this step is optional but it makes a big difference. Dont crowd the pan.

4. Place the seared (or raw if you skipped searing) sliced beef into the crock pot, pour the sauce over the top and stir a bit to coat the meat. Set cooker to low for 3 to 4 hours or high for
1.5 to
2.5 hours, until beef is tender.

5. About 20 to 30 minutes before the end of cooking add 4 cups broccoli florets on top of the meat so they steam but stay crisp. If you prefer very tender broccoli, add earlier; if you like extra crunch, steam or blanch separately and add at the end.

6. When the beef is cooked, mix 3 tablespoons cornstarch with 3 tablespoons cold water to make a smooth slurry. If sauce seems very thin scoop out 1/2 cup of liquid first, then stir the slurry into the crock pot.

7. Turn crock pot to high and let it cook another 10 to 20 minutes, stirring once or twice, until the sauce thickens to a glossy consistency. If it wont thicken, pour sauce into a saucepan and simmer on the stove while stirring until desired thickness.

8. Taste and adjust seasoning — add a little more brown sugar if you want it sweeter or a splash of soy if it needs salt. Stir in sliced green onions and give it a final mix.

9. Serve over steamed rice or noodles, spoon extra sauce on top and garnish with more green onions or a drizzle of sesame oil if you like.

Equipment Needed

1. Sharp chef’s knife (for thin, against-the-grain slices)
2. Sturdy cutting board
3. Rimmed plate or baking sheet (to partially freeze the steak on)
4. Large mixing bowl (for the sauce/marinade)
5. Whisk and measuring cups + spoons
6. Large skillet or heavy frying pan (for optional searing)
7. Crock pot / slow cooker
8. Small bowl and spoon (to make the cornstarch slurry)
9. Tongs or slotted spoon and a heatproof spatula (for stirring and transferring)

FAQ

How long do I cook the beef in the crock pot? Cook on low for 3 to 4 hours or on high for 1.5 to 2.5 hours, until the beef is tender. Thin slices will cook faster, so check near the shorter end so it doesnt get tough.

Should I sear the steak first? You dont have to, but searing 1 to 2 minutes per side in a hot pan with 1 to 2 tbsp oil adds a lot more flavor, it wont change the slow cook time much.

When and how do I add the broccoli so it stays crisp? Add broccoli in the last 20 to 30 minutes on high so it stays bright and slightly crisp. Or steam/blanch separately and stir in just before serving if you want firmer florets.

How do I thicken the sauce so it isnt watery? Mix the 3 tbsp cornstarch with 3 tbsp cold water until smooth, stir into the crock pot near the end, then cook on high 10 to 20 minutes until thickened. If it gets too thick whisk in a splash of beef broth.

Can I make this ahead or freeze it? Yes, you can assemble the sauce and beef in the crock pot insert and refrigerate up to 24 hours before cooking. Cooked beef freezes well up to 3 months but dont freeze the broccoli, it turns mushy. Reheat gently after thawing.

Any easy swaps for ingredients or dietary needs? Use chuck or sirloin if you dont have flank, tamari or coconut aminos for gluten free, reduce brown sugar for less sweet, or swap oyster sauce for hoisin in a pinch. Adjust to taste.

Easy Crock Pot Beef And Broccoli Recipe Substitutions and Variations

Flank steak or skirt steak: use chuck roast cut into 1 inch pieces for melt in your mouth beef (cook low 6 to 8 hours), or swap for boneless skinless chicken thighs if you want a lighter option (cook about 4 hours on low).
Low sodium soy sauce: replace with tamari 1:1 for gluten free, or coconut aminos (start with same amount then taste, it’s sweeter and less salty so add a pinch of salt if needed).
Oyster sauce: sub with hoisin sauce (use same amount but cut brown sugar by 1 tablespoon since hoisin is sweeter) or try a mushroom stir fry sauce for a vegetarian umami boost.
Cornstarch: use arrowroot powder 1:1 mixed with cold water for a glossy sauce, or use all purpose flour at about twice the cornstarch amount and whisk well while cooking to avoid lumps.

Pro Tips

1) Slice thin and quick, not shredded. Partially freeze the steak, use a very sharp knife and cut across the grain on a slight bias so each piece is short and tender. If you slice too thick itll feel chewy no matter what you do later.

2) Sear for flavor, but dont crowd the pan. Hot pan, small batches, 1 to 2 minutes per side to get a good brown crust, then pull the meat out. After each batch deglaze the pan with a splash of broth or a little water and pour those browned bits into the crock pot — thats where a lot of extra flavor hides.

3) Control the broccoli texture. For bright color and a snap, blanch florets in boiling water 30–60 seconds then shock in ice water, then add near the end. If you want softer, add earlier or toss the florets in the crock pot with a bit of extra liquid. Also slice stems thin so they cook evenly with the crowns.

4) Make the slurry work every time. Mix cornstarch with cold water until perfectly smooth then remove about 1/2 cup of hot sauce from the cooker before stirring the slurry in, or add the slurry gradually while stirring. If the sauce still wont thicken, simmer it in a skillet on the stove for a few minutes — heat helps the starch fully activate. Add a splash of acid at the end (rice vinegar or lime) to brighten the sauce if it tastes flat.

Easy Crock Pot Beef And Broccoli Recipe

Recipe by Tessa Jones

0.0 from 0 votes

I finally cracked a Crockpot beef and broccoli method that uses pantry staples and one unexpected ingredient that changes how the sauce comes together.

Servings

servings

Calories

639

kcal

Equipment: 1. Sharp chef’s knife (for thin, against-the-grain slices)
2. Sturdy cutting board
3. Rimmed plate or baking sheet (to partially freeze the steak on)
4. Large mixing bowl (for the sauce/marinade)
5. Whisk and measuring cups + spoons
6. Large skillet or heavy frying pan (for optional searing)
7. Crock pot / slow cooker
8. Small bowl and spoon (to make the cornstarch slurry)
9. Tongs or slotted spoon and a heatproof spatula (for stirring and transferring)

Ingredients

1 1/2 to 2 pounds flank steak or skirt steak, thinly sliced
4 cups broccoli florets (about 1 head)
1/2 cup low sodium soy sauce
1/2 cup beef broth
1/4 cup packed brown sugar
2 tablespoons oyster sauce
1 tablespoon sesame oil
3 cloves garlic minced
1 tablespoon fresh ginger grated
3 tablespoons cornstarch
3 tablespoons cold water
1/4 teaspoon black pepper
2 green onions, sliced
1 to 2 tablespoons vegetable oil

Directions

Partially freeze the flank or skirt steak for 20 to 30 minutes so it firms up, then slice thinly against the grain about 1/8 to 1/4 inch thick — this keeps the meat tender and easy to chew.
In a bowl whisk together 1/2 cup low sodium soy sauce, 1/2 cup beef broth, 1/4 cup packed brown sugar, 2 tablespoons oyster sauce, 1 tablespoon sesame oil, 3 cloves minced garlic, 1 tablespoon grated fresh ginger and 1/4 teaspoon black pepper until the sugar mostly dissolves.
Heat 1 to 2 tablespoons vegetable oil in a hot skillet and quickly sear the steak in batches 1 to 2 minutes per side just to brown and lock in flavor; this step is optional but it makes a big difference. Dont crowd the pan.
Place the seared (or raw if you skipped searing) sliced beef into the crock pot, pour the sauce over the top and stir a bit to coat the meat. Set cooker to low for 3 to 4 hours or high for
5 to
5 hours, until beef is tender.
About 20 to 30 minutes before the end of cooking add 4 cups broccoli florets on top of the meat so they steam but stay crisp. If you prefer very tender broccoli, add earlier; if you like extra crunch, steam or blanch separately and add at the end.
When the beef is cooked, mix 3 tablespoons cornstarch with 3 tablespoons cold water to make a smooth slurry. If sauce seems very thin scoop out 1/2 cup of liquid first, then stir the slurry into the crock pot.
Turn crock pot to high and let it cook another 10 to 20 minutes, stirring once or twice, until the sauce thickens to a glossy consistency. If it wont thicken, pour sauce into a saucepan and simmer on the stove while stirring until desired thickness.
Taste and adjust seasoning — add a little more brown sugar if you want it sweeter or a splash of soy if it needs salt. Stir in sliced green onions and give it a final mix.
Serve over steamed rice or noodles, spoon extra sauce on top and garnish with more green onions or a drizzle of sesame oil if you like.

Notes

Below you’ll find my best estimate of this recipe’s nutrition facts. Treat the numbers as a guide rather than a rule—great food should nourish both body and spirit. Figures are approximate, and the website owner assumes no liability for any inaccuracies in this recipe.