Enjoy Rhubarb Buttermilk Coffee Cake recipe for summer hosting and overnight guests. A light buttermilk coffee cake, delicious served with fruit and coffee!

Rhubarb Buttermilk Coffee Cake

Just in time for summer guests, this Buttermilk Coffee Cake made with rhubarb, which is dangerously good! So good, you may just want to “test” the center piece and make sure that you like it :)

Buttermilk Coffee Cake

This recipe is essentially a Buttermilk Coffee Cake, but with the added tartness of rhubarb! And if you love buttermilk, try my old-fashioned Buttermilk Raisin Bran Muffins and Buttermilk Cake with Bacon Maple Glazewoot woot!

Rhubarb reminds me of my mom, because she loved to cook with it. Combine it with a buttermilk coffee cake, and you have a delicious treat!

Buttermilk Coffee Cake

What is rhubarb?

What is rhubarb, anyway? I’ve always thought it was a fruit, but evidently there’s been quite the discussion about whether it’s a fruit or vegetable.

Rhubarb is the thick leaf stalks (reddish-green) of a cultivated plant of the dock family.


The stalks are long and quite pretty!

Nitty gritty of hospitality

Friends, so much of hosting is not about looking or being cool. It’s good to prioritize in our minds why we entertain, since we live in such a hip and cool society where everything has to look a certain way. The nitty gritty of hospitality for me is to look forward to the people coming over, and the conversation that will be taking place.

There are so many stories that have not been heard, it’s validating and rewarding to be able to talk about life with others!

At the same time, I’ve been to a few dinners where the host was so disorganized and preoccupied, it didn’t feel right.

Easy Rhubarb Buttermilk Coffee Cake

Honestly, we still had a great time, and it was wonderful just being together. But I did feel for this sweet hostess, who clearly was not enjoying herself.

Hospitality is not about hating it while you’re doing it

Hospitality is not about hating it while you’re doing it. I believe you should really put your heart into it (think about the people, not perfection), and that may mean some planning ahead, depending on your personality.

Are you an introvert or an extrovert?

Hosting as an introvert I believe takes more energy and planning, as with an extrovert, you might be able to wing it more.

Either way, it’s so worth putting effort into a gathering.

Yes, you may have to push yourself, but in the end, you’re always glad you did.

Once you make the commitment, run with it!

For me? I am an extrovert, but I still have to talk myself into a few things (a big push) to get organized so I can enjoy myself.

By the way, don’t let the size or style of your house get in your way, friends. This never makes a gathering successful, but instead, offer a warm feel to your home. This may mean being organized ahead of time, so you can give your all to your guests.

BEST Rhubarb Buttermilk Coffee Cake

Rhubarb Buttermilk Coffee Cake Recipe

Just in time for summer guests is this Rhubarb Buttermilk Coffee Cake recipe! Perfect for summer guests!

Rhubarb Buttermilk Coffee Cake - batter

It’s tart (doesn’t the rhubarb look like apples?) and sweet at the same time. So good made with dark brown sugar.

A flavor that I love.

ENJOY, and happy SUMMER!

4.25 stars (4 reviews)
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Get the Recipe:

Rhubarb Buttermilk Coffee Cake Recipe

Prep Time: 15 minutes
Total Time: 1 hour
Yield: 8 -12


  • 1 1/2 cups fresh rhubarb, cut in small pieces
  • 1/2 cup 1 stick of butter, softened
  • 1 cup dark brown sugar, divided
  • 1 cup buttermilk
  • 2 eggs
  • 1 tsp vanilla
  • 2 cups flour
  • 1 tsp baking soda
  • 1 tsp salt
  • TOPPING: 1 Tbsp. butter
  • 1/2 tsp. cinnamon
  • 1/2 cup chopped nuts, I used Trader Joe's candied pecans


  • Preheat oven to 350. Spray a 9×13 inch baking dish and set aside.
  • In bowl (using electric mixer), add the butter, 1/2 cup dark brown sugar, buttermilk, and eggs. Mix until light and fluffy. Add in rhubarb and vanilla.
  • Add flour, baking soda and salt and mix until just combined. Spread into prepared pan.
  • In a small bowl, mix together the remaining 1/2 cup dark brown sugar, 1 Tbsp. butter, cinnamon, and chopped nuts.
  • Sprinkle top with the topping mixture.
  • Bake for 35 minutes or until a toothpick inserted in the center comes out clean.
Did you make this recipe?Tag @reluctantentertainer on Instagram and hashtag it #reluctantentertainer!

More rhubarb recipes: Strawberry Rhubarb Crunch [Barefeet in the Kitchen] and Rhubarb Sherbet [Pint Sized Baker].

Rhubarb Buttermilk Coffee Cake Recipe