Ruby Red Grapefruit Pound Cake recipe, tart and sweet, this dessert is inventive, interesting, and unique.
This cake is light and airy with a luscious texture. I fell a little more in love with it with every bite.
Not an overly sweet cake, I would serve this with coffee at breakfast or brunch probably because that’s the time in which I associate grapefruit flavors.
I’ve been testing every kind of Pound Cake that you can think of. I’ve made Pumpkin Pound Cake, Pecan Pie Pound Cake, Lemon Pound Cake, Million Dollar Pound Cake, Old Fashioned Blue Ribbon Pound Cake, and Whipping Cream Pound Cake to name a few. (You can see the entire list here or at the end of this post.)
Ruby Red Grapefruit Pound Cake
For a successful pound cake, there are a few very important things to remember.
- Measuring flour is of utmost importance. Please read this post on how to correctly measure flour.
- It takes a little patience to make. Don’t rush the mixing process.
- Also, add the eggs one at a time. The standard size egg is large unless otherwise specified in the recipe. You may want to refer to this chart if you have another size of an egg.
- Finally, allow the cake to cool at least 20 minutes in the pan before inverting it onto a platter.
- Use good ingredients. Always use real butter when making a pound cake. Margarine will not have the same result. Purchase the best flour, vanilla, etc that you can afford. It really does make a difference with such simple ingredients.
- This cake freezes well. Freeze in an airtight container up to 3 months. Thaw the cake in the refrigerator overnight or on the countertop at room temperature a few hours.
Please keep in mind that nutritional information is a rough estimate and can vary based on products used.

Ruby Red Grapefruit Pound Cake
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Save To Your Recipe BoxIngredients
- 3 and 3/4 cups all-purpose flour
- 3 teaspoons baking powder
- 1 teaspoon salt
- 6 large eggs
- 3/4 cup Greek yogurt
- 1/2 cup buttermilk
- 2 cups light brown sugar packed
- 1 cup vegetable or canola oil
- 2 tablespoons Ruby Red grapefruit zest
- 1/2 cup Ruby Red grapefruit juice freshly squeezed
- 1 tablespoon vanilla extract
- 1 cup confectioners sugar sifted
- 3 tablespoons Ruby Red grapefruit juice
- 1/4 teaspoon vanilla extract
Instructions
- Preheat the oven to 350 degrees F.
- Grease and flour a tube or bundt pan.
- Whisk the flour, baking powder, and salt together.
- Whisk eggs in another bowl.
- Add yogurt, buttermilk, brown sugar, oil, grapefruit juice, grapefruit zest, and vanilla to eggs and whisk.
- Combine the flour with the wet ingredients.
- Pour batter into prepared pan. Bake for 45 to 50 minutes or until wooden pick inserted into the center comes out clean or with dry crumbs.
- Remove the cake from oven and allow to cool for 20 to 30 minutes on wire rack.
- After 20 or 30 minutes, gently remove from pan to serving platter.
- Whisk together confectioners' sugar, grapefruit juice, and vanilla extract.
- Drizzle glaze over warm cake.
- Slice and serve.
- Store in an airtight container on the counter for 4 to 5 days or in the refrigerator up to 7 days.
Notes
Nutrition
While you’re here, check out these recipes. You can get ALL my pound cake recipes here.
Carrot Pound Cake with Pineapple Mascarpone Frosting
Old Fashioned Blue Ribbon Pound Cake
Whipping Cream Pound Cake Recipe
Cold Oven Brown Sugar Whipping Cream Pound Cake
Sour Cream Pound Cake Recipe
Coconut Cream Cheese Pound Cake
Chocolate Pound Cake
Vanilla Red Velvet Marbled Pound Cake Recipe
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Patricia Gibson says
Hi paula. Quick question. I’m gonna attempt to make this cake tomorrow. Am I gonna mix ingredients with mixer or with a whisk or spatula. Help!
Paula says
You can do either, but my arm gives out before I’m whipped it enough so I use an electric mixer.
Patricia Gibson says
Thanks for replying. I did make this cake but i really didn’t taste any type of tart or grapefruit flavor that I was expecting from the grapefruit. Other than that it was a spot on.
Hannah says
Made this today, it is delicious. Honestly perfectly balanced and a great, light dessert. Cheers!
Autumn says
Do need buttermilk or butter? What step do use the buttermilk or butter?
Paula says
I just put them in
Tony says
I see there is buttermilk in the recipe but not in the instructions is it used in the recipe? I’m gonna make this this weekend.
gali says
omg the pound cakes sound so yummy . I want to make them all <3