Desserts

Classic Rum Cake: Boozy. Buttery. Bundt. Beautiful.

3 min

Scatter the cup of chopped pecans across the bottom of the greased Bundt pan before any batter goes in, because that's where they'll toast into the top crust once you flip it. The batter itself is a doctored yellow cake mix, with a box of instant vanilla pudding stirred in to keep the crumb dense and moist enough to drink up the syrup later. What earns the name is the second act: you boil butter, sugar, and water into a thin caramel, kill the heat, then stir in a half cup of rum so the alcohol stays sharp instead of cooking off. Poke the warm cake full of holes and spoon that over slowly, and give it the full hour to soak before you cut in.

By Nora Calloway

A little backstory

Rum cake traces back to the Caribbean, where it grew out of British holiday dried-fruit puddings that colonists adapted using the molasses and rum the islands produced in abundance. The boxed-mix version most American kitchens make today is a much later thing, popularized through the late 20th century by brands printing the recipe on their packaging. So the cake is really two traditions stacked: an old island dessert and a midcentury convenience-baking shortcut.

Rum cake is what happens when butter, sugar, and rum fall in love.

Dense, buttery pound cake. Soaked in a buttery rum syrup. Toasted pecans on top. It’s boozy. It’s beautiful. It’s impossible to eat just one slice.

Ingredients

Serves 10-12.

Step-by-Step Instructions

1 1

Preheat and Prep

Preheat oven to 325°F (165°C). Grease a 10-inch Bundt pan.

Sprinkle chopped pecans evenly in the bottom of the pan.

2 2

Make the Cake Batter

In a large bowl, combine cake mix, pudding mix, rum, water, oil, eggs, and vanilla.

Beat until smooth (about 2 minutes).

3 3

Bake

Pour batter over pecans. Bake 50-60 minutes until toothpick comes out clean.

Let cool 10 minutes in pan. Invert onto a serving plate.

4 4

Make the Rum Syrup

In a saucepan, melt butter with water and sugar. Bring to a boil.

Reduce heat. Simmer 5 minutes, stirring constantly.

Remove from heat. Stir in rum and vanilla.

5 5

Soak the Cake

Poke holes all over the warm cake with a skewer or fork.

Spoon or brush syrup slowly over the cake, letting it soak in.

6 6

Serve

Let cake absorb syrup completely (about 1 hour). Serve at room temperature.

Summary

Prep Time: 15 minutes | Cook Time: 50-60 minutes | Total Time: ~2 hours

Yield: 10-12 servings

Difficulty: Easy

Storage Notes

Room Temp: Store tightly covered for up to 1 week. Gets more flavorful with time.

Freezer Friendly: Freeze for 3 months. Thaw at room temperature.

Pro Tip: Dark rum is best for deep flavor. Light rum works but is less boozy.

The Ingredients

Everything you need.

Prep

15 minutes

Cook

50-60 minutes

Total

~2 hours

Yield

10-12 servings

For the Cake:

1 cup chopped pecans
1 box (15 oz) yellow cake mix
1 box (3.4 oz) instant vanilla pudding mix
½ cup dark or golden rum
½ cup water
½ cup vegetable oil
4 large eggs
1 tsp vanilla extract

For the Rum Syrup:

½ cup unsalted butter
¼ cup water
1 cup granulated sugar
½ cup dark or golden rum
1 tsp vanilla extract

Instructions

1
Preheat and Prep. Preheat and Prep. Preheat oven to 325°F (165°C). Grease a 10-inch Bundt pan. Sprinkle chopped pecans evenly in the bottom of the pan. 2 2
2
Make the Cake Batter. Make the Cake Batter. In a large bowl, combine cake mix, pudding mix, rum, water, oil, eggs, and vanilla. Beat until smooth (about 2 minutes). 3 3
3
Bake. Bake. Pour batter over pecans. Bake 50-60 minutes until toothpick comes out clean. Let cool 10 minutes in pan. Invert onto a serving plate. 4 4
4
Make the Rum Syrup. Make the Rum Syrup. In a saucepan, melt butter with water and sugar. Bring to a boil. Reduce heat. Simmer 5 minutes, stirring constantly. Remove from heat. Stir in rum and vanilla. 5 5
5
Soak the Cake. Soak the Cake. Poke holes all over the warm cake with a skewer or fork. Spoon or brush syrup slowly over the cake, letting it soak in. 6 6
6
Serve. Serve. Let cake absorb syrup completely (about 1 hour). Serve at room temperature

Swaps & Substitutions

Dark or golden rum → spiced rum works and adds clove notes; for alcohol-free, swap in rum extract diluted with water or apple juice, but you lose the boozy bite that defines this cake
Pecans → walnuts are the easy trade, or leave nuts out entirely and just grease the pan well
Yellow cake mix → a butter or white mix is fine; avoid anything with pudding already in it since you're adding your own
Unsalted butter → salted butter works in the syrup; it's only a half teaspoon of salt difference and a pinch of salt actually helps the rum flavor
Vegetable oil → melted coconut or canola oil both slot in 1:1 with no real change to the crumb
Instant vanilla pudding mix → don't skip it; without it the cake bakes drier and won't hold the syrup as well

Questions & Answers

Why is the syrup soaking into the cake unevenly or pooling on top?

You probably soaked it too fast or the holes weren't deep enough. Poke all the way down with a skewer, then add the syrup in two or three rounds, letting each one disappear before the next.

Can I make this ahead?

Yes, it's better the next day. Wrap it tightly once fully soaked and cooled; it keeps at room temperature for about 3 days and the rum flavor settles in nicely.

Do I soak the cake warm or cold?

Warm. Apply the syrup while the cake is still warm from inverting, because a warm crumb opens up and absorbs far more than a cooled one.

Will the alcohol cook off?

Most of it stays. The syrup rum is stirred in off the heat and the cake is already baked, so this lands as a genuinely boozy dessert. Use rum extract if you need it non-alcoholic.

My cake stuck in the pan. What went wrong?

Bundt pans need every crevice greased, and the pecans need a buttered surface under them too. Also respect the 10-minute rest before inverting; flip too early and it tears, too late and the sugars glue it down.

Classic Rum Cake: Boozy. Buttery. Bundt. Beautiful.

Ingredients