Black Plum Crumb Bars

Black Plum Crumb Bars |

These Black Plum Crumb Bars are perfect when the black plums begin showing up in the market. Juicy and delicious, it’s a simple recipe that enhances the plum’s irresistible flavor.

In a season of potlucks and cookouts, picnics, and barbecues, these crumb bars are the perfect dessert to bring. They’re tangy and buttery, sweet and crumbly.

Perfect for seconds and even thirds.


Plums in Black Plum Crumb Bars

I love to use Black Plums in this crumb bar recipe. But while they are especially tasty, you can substitute other plum varieties, berries, cherries, or even peaches. There are so many ways to imagine this incredibly delicious crumble cookie.

Black Plum Crumb Bars |

How to Select Plums

When you’re shopping for plums, keep these tips in mind from Whole Foods:

If you want to purchase plums that are ripe and ready to eat, look for ones that yield to gentle pressure and that are slightly soft at their tip. Good quality plums will feature a rich color and may still have a slight whitish bloom, reflecting that they have not been overhandled. They should also be free of punctures, bruises or any signs of decay. Plums are generally available in the marketplace from May through the early fall.

Plums that are not yet ripe can be left at room temperature. As this fruit tends to mature quickly, check on them in the next day or two to ensure that they do not become overripe. Once they are ripe, plums can be stored in the refrigerator for a few days. While plums can be frozen, to ensure maximum taste, remove their stone pits before placing them in the freezer.

Black Plum Crumb Bars |

Black Plum Crumb Bars |

Black Plum Crumb Bars

Yield: 12 servings
Prep Time: 15 minutes
Cook Time: 45 minutes
Total Time: 1 hour

In a season of potlucks and cookouts, picnics and barbecues, these crumb bars are the perfect dessert to bring. They're tangy and buttery, sweet and crumbly. And incredibly easy to make.

Perfect for seconds and even thirds.



  • 1 cup butter, cold, cubed
  • 3 cups all-purpose flour
  • 1 cup brown sugar
  • 1 teaspoon baking powder
  • 1 teaspoon cinnamon
  • 1/4 teaspoon salt
  • large egg


  • 4-6 large Black Plums (or other plum variety), chopped
  • 3/4 cup granulated sugar
  • 4 teaspoons cornstarch
  • 1/4 teaspoon nutmeg


  1. Preheat oven to 350 degrees. Spray a 9x13 inch baking pan with cooking spray or line with parchment paper with an overhang for easy removal.
  2. For the crust: In a medium bowl, stir together the flour, brown sugar, baking powder, cinnamon, and salt. Cut the cubed butter into the flour mixture with a fork or pastry cutter; add the egg and mix together. The dough will be crumbly. Pat half of it into the bottom of the prepared baking pan.
  3. Filling: In a separate bowl, stir together the sugar, cornstarch, and nutmeg. Fold in the chopped plums. Sprinkle the plum mixture evenly over the bottom layer crust in the baking pan. Then crumble the remaining crust dough and spread over the plums.
  4. Bake in preheated oven for 40 to 45 minutes, or until the top is beginning to brown and the plumbs are bubbling. Cool completely before cutting into squares. Refrigerate to speed up the process!

Recommended Products

As an Amazon Associate and member of other affiliate programs, I earn from qualifying purchases.

Nutrition Information:
Yield: 12 Serving Size: 1
Amount Per Serving: Calories: 381Total Fat: 16gSaturated Fat: 10gTrans Fat: 1gUnsaturated Fat: 5gCholesterol: 56mgSodium: 217mgCarbohydrates: 56gFiber: 1gSugar: 31gProtein: 4g

Did you make this recipe?

Follow me on Pinterest for more and use the "Pin" button at the top of the recipe card.

Black Plum Crumb Bars |

10 thoughts on “Black Plum Crumb Bars

  1. Anonymous

    Could this be made omitting the egg?

    1. Stephanie Wilson

      Although I’ve not made it without using the egg in the crumb portion of the recipe, I don’t see why it wouldn’t work. It may be a bit more crumbly without the egg to bind, but I know it would be delicious too!

  2. Benita L. Sharpe

    I used 8 plums instead of 5-6; It turned out very well and it is delicious.

    1. I’m so glad you liked it! It’s one of our favorites too.

  3. Norma

    The crust is already brown before I bake it in preheated oven because of the brown sugar in the ingredients, how can you make the top lightly brown when you bake it? …its still delish.

    1. Hi Norma! All ovens are a bit different. The gas oven I’m using right now bakes a bit differently than the electric oven I was using last year. The crumble topping differs in color, I think, every time I make these. I do begin checking them at about 30 to 35 minutes. At that point, I will sometimes add a sheet of tented foil to keep the bars from over-browning.

  4. Tamara

    Great recipe. What size pan do you use?

    1. Hi Tamara — I use a 9 inch by 13 inch baking pan. If it’s dark metal, I watch it closely and end up reducing the baking time for a couple of minutes.

  5. Sherrie

    Hi. What do you think about using canned plums? We were given several cans.

    1. That’s a great gift! And I do think they would work well in the bars. I’m not sure about adding the cornstarch to the filling with canned plums as I’ve not tested it that way. I would use my best judgment on that depending on how jelled the plums are. I would love to hear how they turned out!

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.