This rum cake recipe from scratch makes a classic 10-inch Bundt cake with butter, eggs, buttermilk, vanilla, and dark or gold rum. The cake bakes in approximately 50–60 minutes, then absorbs a warm butter-rum syrup for a moist crumb and fragrant finish.
Each slice is tender, buttery, and lightly caramel-like, with rum flavor running through the cake instead of sitting only on top. Add finely chopped pecans or walnuts for a Southern-style touch, or leave them out for a smooth, simple holiday and celebration dessert.
This from-scratch rum cake has the familiar beauty of a celebration Bundt cake but a more tender, fragrant crumb than many shortcut versions. Creamed butter and sugar give the batter structure and richness, while buttermilk keeps each slice soft and pleasantly delicate.
The warm syrup is the signature finishing touch. It slips into the small holes made across the baked cake, carrying butter, sugar, and rum into the center so the flavor is present from the first bite to the last.
This recipe is especially suited to birthdays, Christmas, Easter, dinner parties, and milestone gatherings because it can be made ahead. Its flavor becomes rounder and its texture becomes more evenly moist after an overnight rest.
If you enjoy rum-forward desserts, you may also like this Italian rum cake, which offers another festive way to use the spirit in a dessert.
Ingredients You’ll Need
The ingredient list is straightforward, but temperature and preparation matter. Set the butter, eggs, and buttermilk out ahead of time so they blend into a smooth batter without chilling the creamed butter.
Flour: All-purpose flour provides the sturdy yet tender foundation needed for a Bundt cake.
Leaveners: Baking powder and baking soda help the cake rise while keeping the crumb light.
Butter and sugar: These create the rich flavor and airy base that make the cake special.
Eggs: Four large room-temperature eggs add moisture, structure, and richness.
Buttermilk: Its gentle tang balances the sweetness and contributes to a soft crumb.
Rum and vanilla: Dark rum gives a deeper flavor, while gold rum is somewhat milder. Vanilla rounds out both the cake and syrup.
Nuts: Pecans or walnuts are optional, though pecans are especially appealing in this style of cake.
For another butter-rich dessert to serve at an occasion, compare this recipe with our butter cake recipe. The two cakes use similar pantry staples, but the rum syrup gives this Bundt its distinctive character.
How to Make It Step-by-Step
Step 1: Heat the oven to 350°F (175°C) and prepare the 10-inch Bundt pan with great care. Grease every contour, including the center tube, then dust with flour or use baking spray that contains flour so the finished cake releases cleanly.
Step 2: If you are adding nuts, sprinkle the finely chopped pecans or walnuts into the bottom of the pan. In a separate bowl, whisk together the flour, baking powder, baking soda, and fine salt so the leaveners are evenly distributed.
Step 3: Place the softened butter and granulated sugar in a large mixing bowl and beat for 3–5 minutes. The mixture should become noticeably paler and fluffy, which helps create a lighter cake rather than a dense one.
Step 4: Beat in the room-temperature eggs one at a time, scraping the sides and bottom of the bowl after each addition. Mix in the vanilla extract once the eggs are fully incorporated, stopping to scrape the bowl again if needed.
Step 5: Add the dry mixture in three additions, alternating with the buttermilk. Begin and end with the dry ingredients, and mix only until the batter is combined so the cake remains tender.
Step 6: Fold in the dark or gold rum and the optional nuts by hand. Folding at the end keeps the batter from being overmixed and distributes the flavorful additions without deflating the mixture.
Step 7: Pour the batter into the prepared Bundt pan and smooth the top. Bake for approximately 50–60 minutes, checking with a skewer near the end; it should come out with a few moist crumbs, and the cake should pull slightly from the pan.
Step 8: While the cake is baking, prepare the syrup by bringing the butter, sugar, and water to a boil in a saucepan. Simmer for 3–5 minutes, stirring until the sugar dissolves, then remove the pan from the heat before carefully stirring in the rum and optional vanilla.
Step 9: Let the baked cake cool in its pan for 10–15 minutes, then pierce it repeatedly with a skewer or toothpick. Slowly spoon or brush about two-thirds of the warm syrup across the cake, allowing each portion time to absorb before adding more.
Step 10: Let the cake rest in the pan for at least 30 minutes so the syrup can travel through the crumb. Invert it onto a serving plate, brush with the remaining syrup, and cool completely before cutting into neat slices.
Pro Tips for a Perfect Bundt Cake
The most common problem with rum cake is sticking, and prevention is much easier than repair. Work softened butter or baking spray into every groove of the Bundt pan, especially around the center tube, then dust with flour if you are not using flour-based baking spray.
Do not rush the creaming stage. Three to five minutes of beating butter and sugar incorporates air that supports the cake as it bakes, while room-temperature eggs and buttermilk help the batter stay cohesive.
When alternating the dry ingredients and buttermilk, use low speed and stop as soon as the flour disappears. A few small streaks can be finished with a spatula; prolonged mixing can produce a tougher crumb.
Pouring the syrup gradually is equally important. If all of it is added at once, the lower portion of the cake may become overly wet, but a slow application gives the syrup time to absorb throughout the cake.
Choose dark rum when you want a stronger, deeper flavor with molasses-like notes. Gold rum gives a gentler result that works well when serving guests who prefer a less pronounced rum taste.
Flavor Variations and Serving Ideas
Pecans are a natural match for the buttery syrup, adding delicate crunch and a toasted Southern flavor. Walnuts work just as well, while omitting nuts creates a smooth cake that is easier to serve to a crowd with allergies or preferences to consider.
For a particularly festive presentation, arrange thin orange or lemon zest curls around the base of the cake. A light dusting of powdered sugar is also attractive, although the glossy syrup alone provides plenty of visual appeal.
Serve slices at room temperature when you want the softest crumb and fullest aroma. A spoonful of lightly sweetened whipped cream, vanilla ice cream, or fresh berries can balance the richness without competing with the rum.
For another Bundt-style dessert suitable for a gathering, see this pineapple upside-down Bundt cake. Its fruit-forward profile makes a bright contrast to this buttery, spirit-scented cake.
Storage, Resting, and Serving
Once completely cool, wrap the cake tightly and keep it at room temperature for up to several days. Resting it overnight is recommended because the syrup continues to distribute through the crumb, making the texture more uniform and the rum flavor smoother.
If your kitchen is especially warm, refrigerate the wrapped cake, but bring it toward room temperature before serving. Cold cake is firmer and less aromatic, while a rested room-temperature slice feels softer and tastes more balanced.
Make ahead: Bake and syrup the cake one day before serving for excellent flavor.
Slice cleanly: Use a sharp serrated or chef’s knife and wipe it between cuts.
Keep covered: A cake dome or airtight wrapping protects the moist surface from drying.
Serve responsibly: The syrup contains rum, so label the dessert clearly when serving children or guests who avoid alcohol.
Do not pour leftover syrup over every slice at the table, since the cake already contains a generous amount. Instead, reserve a small amount for brushing the surface just before serving if you want an especially glossy finish.
Rum Cake Recipe from Scratch
A moist 10-inch Bundt cake made with butter, buttermilk, vanilla, and dark or gold rum, finished with a warm buttery rum syrup. The cake serves approximately 12–16 people and tastes even better after resting overnight.
1cup (about 115 g)Finely chopped pecans or walnuts, optional
Butter-Rum Syrup
1/2cup (113 g)Unsalted butter
1cup (200 g)Granulated sugar
1/4cup (60 ml)Water
1/4 to 1/2cup (60–120 ml)Dark or gold rum
1teaspoonVanilla extract, optional
Method
Step-by-Step
Heat the oven to 350°F (175°C). Thoroughly grease and flour a 10-inch Bundt pan, or coat it with baking spray that contains flour, making sure to cover every ridge and the center tube.
If using nuts, sprinkle the finely chopped pecans or walnuts into the bottom of the prepared pan. Whisk the flour, baking powder, baking soda, and salt together in a separate bowl.
Beat the softened butter and granulated sugar for 3–5 minutes, until pale and fluffy. Add the eggs one at a time, scraping down the bowl after each addition, then mix in the vanilla.
Add the dry ingredients in three additions, alternating with the buttermilk and beginning and ending with the dry mixture. Mix only until combined, then fold in the rum and nuts if using.
Transfer the batter to the Bundt pan and smooth the top. Bake for approximately 50–60 minutes, until a skewer comes out with a few moist crumbs and the cake pulls slightly from the sides of the pan.
While the cake bakes, bring the butter, sugar, and water to a boil in a saucepan. Simmer for 3–5 minutes, stirring until the sugar dissolves, then remove from the heat and carefully stir in the rum and optional vanilla.
Cool the cake in the pan for 10–15 minutes, then pierce it repeatedly with a skewer or toothpick. Slowly spoon or brush about two-thirds of the warm syrup over the cake, pausing so it can absorb.
Let the cake rest in the pan for at least 30 minutes before inverting it onto a serving plate. Brush the remaining syrup over the exposed cake, then cool completely before slicing.
Notes
For the best flavor and texture, wrap the cooled cake and let it rest overnight before serving. Use dark rum for a deeper flavor or gold rum for a milder profile. Take care when stirring rum into the hot syrup, and serve responsibly.
Final Thoughts
This rum cake recipe from scratch is a dependable occasion dessert with a tender buttery crumb, gentle tang from buttermilk, and a warm rum syrup that makes every slice wonderfully moist. It looks impressive on a cake stand, yet the method is approachable when you prepare the Bundt pan carefully and give the syrup time to absorb.
Choose dark rum for a bold, rich finish or gold rum for a softer profile, and add pecans when you want extra crunch. Once the cake has rested overnight, slice it generously and serve it with whipped cream, ice cream, or coffee for a memorable dessert.
