Cinnamon Swirl Bundt Cake

May 7, 2026

The second the oven hits 350°F, this Cinnamon Swirl Bundt Cake starts doing its best work—warming the kitchen with cinnamon and vanilla and baking into a tall, golden ring with a tender crumb. It’s the kind of cake that slices cleanly but still feels soft and plush, thanks to buttermilk in the batter and a gentle hand when mixing.

What makes it especially worth making is the simple swirl moment: you spoon in half the batter, sprinkle a cinnamon-sugar layer, then cap it with the rest. That little step gives you pockets of sweet spice and a pretty ribbon effect without any fuss. If you’re planning a cozy weekend bake (maybe alongside these banana oatmeal pancakes tomorrow morning), this one’s a keeper.

Why You’ll Love This Recipe

A real cinnamon payoff: Ground cinnamon is in the batter and in the swirl, so every bite smells like warm spice, not just the middle slices.
Tender, not heavy: The buttermilk keeps the crumb soft and slightly tangy, balancing the 1 cup of sugar so it doesn’t taste flat.
Beautiful without decorating: A bundt pan does the presentation work—those ridges make it look special even served plain.
Easy mixing, low stress: One bowl for dry, one for creaming—no tricky techniques, just stop mixing as soon as the flour disappears.
That swirl layer: The cinnamon-sugar stripe bakes into a lightly caramelized seam that’s perfect with coffee or tea.

The Story Behind This Recipe

I wanted a bundt cake that felt like a coffee cake—cinnamon-forward, tender, and sliceable—but with a simpler method and ingredients I always have around: flour, butter, eggs, and buttermilk. The swirl is the “extra” step, but it’s quick, and it gives the cake that bakery-style look when you cut into it.

What It Tastes Like

This cake is gently sweet with a clear cinnamon warmth and a soft vanilla background. The crumb is moist and springy (not dense), and the swirl adds a sweet, spiced contrast that reads like a thin ribbon of cinnamon bun filling. As it cools, the cinnamon aroma settles into the whole cake—especially around the edges where the bundt pan browns it just a little more.

Ingredients You’ll Need

This batter is built for balance: butter brings richness, buttermilk keeps the crumb tender with a subtle tang, and baking powder + baking soda give a reliable lift. Cinnamon pulls double duty—mixed into the dry ingredients for all-over spice and layered as a swirl for that defined stripe. If you don’t have buttermilk, you’ll need to grab it for this one; it’s a key part of the texture and flavor.

2 cups all-purpose flour
1 ½ teaspoons baking powder
1 teaspoon baking soda
1 cup sugar
1 teaspoon ground cinnamon
½ teaspoon salt
½ cup unsalted butter, softened
3 large eggs
1 teaspoon vanilla extract
1 cup buttermilk

How to Make Cinnamon Swirl Bundt Cake

Heat the oven and prep the pan. Preheat to 350°F (175°C). Grease a bundt pan thoroughly, making sure you get into the center tube and all the grooves—this cake likes to cling if any spot is dry.
Whisk the dry ingredients. In a large bowl, whisk together the flour, baking powder, baking soda, cinnamon, and salt until the cinnamon looks evenly distributed (no streaky pockets).
Cream butter and sugar. In another bowl, cream the softened butter and sugar until it looks lighter in color and fluffy, not sandy. This step helps the cake bake up with a finer, softer crumb.
Add eggs and vanilla. Add the eggs one at a time, mixing until each one is fully blended before adding the next. Stir in the vanilla extract. The mixture should look smooth and a little glossy.
Alternate dry ingredients and buttermilk. Add the dry ingredients and buttermilk in alternating additions, mixing gently just until the batter comes together. Stop as soon as you don’t see dry flour—overmixing can make the cake tighter instead of tender.
Layer the batter. Spoon half the batter into the greased bundt pan and spread it level so the swirl layer sits evenly.
Add the swirl. In a small bowl, mix cinnamon and sugar, then sprinkle it evenly over the batter. Aim for an even blanket rather than a pile in one spot—this helps the swirl show up in every slice.
Top with remaining batter. Spoon the rest of the batter over the cinnamon-sugar layer and smooth gently. Try not to drag your spoon through the middle too much—you want that stripe to stay distinct.
Bake. Bake for 50–60 minutes, until the top looks set and a toothpick inserted into the center comes out clean. The cake should spring back lightly when touched.
Cool before flipping. Let the cake cool in the pan before inverting onto a plate. If you flip too soon, the cake is more likely to crack or leave pieces behind.
Serve. Slice and serve warm or at room temperature. It’s especially good with coffee or tea—similar cozy energy to a lazy morning with a small batch of pancakes, but in cake form.

Tips for Best Results

Grease every ridge like you mean it. Bundt pans have lots of nooks; take an extra minute here so the cake releases cleanly.
Use truly softened butter. If it’s still cool and firm, it won’t cream properly with the sugar and the cake won’t bake up as evenly.
Mix gently once the flour goes in. The batter should look thick and smooth; stop mixing the moment it’s combined to keep the crumb tender.
Spread the first layer level. A flat first layer helps the cinnamon-sugar sprinkle stay even, which gives you a more consistent swirl.
Let it cool in the pan first. Cooling helps the cake set so it unmolds in one piece, with those edges nice and defined.

Variations and Substitutions

More pronounced cinnamon ribbon: Sprinkle the cinnamon-sugar a bit more heavily in the center area (still evenly), so the stripe reads bolder when sliced.
Softer spice profile: Keep the swirl layer as written, but whisk the batter cinnamon very thoroughly so it’s warm and even rather than “spiky” in random bites.
Serving twist (no extra baking changes): Serve with an extra pinch of cinnamon on the plate for aroma, especially if you’re serving at room temperature.

How to Serve It

Warm slices are especially comforting—the cinnamon smells stronger and the crumb feels extra soft.
Serve at room temperature for the cleanest slices and the most defined swirl line.
Pair with coffee or black tea to balance the sweet cinnamon seam.
For a simple presentation, set the bundt on a plate and let the ridges do the work—this cake already looks dressed up.

How to Store It

Keep the cake covered at room temperature so it stays soft; the buttermilk helps it hold moisture nicely.
If you prefer it warm, gently reheat individual slices so the cinnamon aroma perks back up before serving.
For making ahead, bake the day before and serve at room temperature—the swirl flavor actually settles in beautifully overnight.

Final Thoughts

If you like cinnamon desserts that taste like more than just sugar, this bundt is a great bake to have in your back pocket: simple batter, a quick swirl step, and a slice that feels both cozy and tidy. Make it once and you’ll start spotting excuses to keep buttermilk in the fridge.

Conclusion

If you want to compare swirl styles or bundt techniques, these are genuinely helpful references: Cinnamon Swirl Bundt Coffee Cake Recipe – Allrecipes, Famous Cinnamon Roll Bundt Cake – Grandbaby Cakes, and Cinnamon Roll Bundt Cake – Sprinkle Bakes.