Cinnamon Swirl Bundt Cake

The best part of a Bundt cake is that moment you flip it out of the pan and the ridges look crisp and bakery-pretty—no frosting required. This cinnamon swirl version bakes up tall and tender, with a warm cinnamon aroma that hits as soon as you crack the oven door and a delicate, tight crumb from the buttermilk.

If you’re craving cinnamon-roll vibes but want something sliceable and shareable, this is the move. And on days when you want the cinnamon fix in minutes instead of an hour, I keep a quick bookmark for a microwave cinnamon roll in a mug—totally different texture, but the same cozy lane.

Why You’ll Love This Recipe

• The buttermilk makes the crumb extra tender with a subtle tang that keeps the sweetness in check.
• Cinnamon is mixed right into the batter, so every bite tastes warmly spiced—not just the “swirl” parts.
• The batter comes together in a straightforward cream-butter-and-sugar method, so it feels familiar and reliable.
• Bakes up beautifully in a Bundt pan with defined ridges and a golden-brown crust.
• Great for slicing: the cake holds together cleanly without being dry or crumbly.
• No complicated finishing—just cool, invert, and serve.

The Story Behind This Recipe

I developed this one for the mornings I want something that smells like a cinnamon bakery but slices like a proper cake. The combination of butter, vanilla, and buttermilk gives it that classic, old-school Bundt texture, and the cinnamon sugar sprinkled mid-pan creates little pockets of spice that show up in every slice.

What It Tastes Like

This cake is gently sweet with a clear cinnamon warmth and a soft vanilla-butter backdrop. The buttermilk adds a faint tang that makes the flavor feel balanced, and the crumb is plush and springy—moist but not wet—with a lightly browned edge that gives each slice a bit of contrast.

Ingredients You’ll Need

This is a pantry-friendly batter: flour for structure, baking powder and baking soda for lift, and buttermilk for tenderness and that subtle tang. Make sure your butter is truly softened (it should smear easily, not melt), because that’s what helps you cream in air for a lighter cake. If you don’t have buttermilk, you can still make the cake, but the texture will be a little less tender and the flavor less “bright.”

• 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

1. Heat the oven and prep the pan. Preheat to 350°F (175°C). Grease your Bundt pan thoroughly, getting into every ridge—this batter bakes up tender, so a well-greased pan matters for a clean release.
2. 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 little brown pockets).
3. Cream butter and sugar. In another bowl, beat the softened butter and sugar until it looks lighter in color and fluffy. You’re looking for a soft, airy texture rather than a dense paste.
4. Add eggs and vanilla. Beat in the eggs one at a time, mixing until each disappears before adding the next. Stir in the vanilla extract; the batter should look smooth and slightly glossy.
5. Alternate dry mix and buttermilk. Add the flour mixture and buttermilk in alternating additions, mixing gently and stopping as soon as you don’t see dry flour. The batter will be thick and spoonable—avoid overmixing so the cake stays tender.
6. Layer into the pan. Spoon half the batter into the prepared Bundt pan and spread it lightly so it reaches the sides. Sprinkle with cinnamon-sugar, then top with the remaining batter and smooth the top.
7. Bake. Bake for 50–60 minutes, until a toothpick inserted into the cake comes out clean. The top should look set and deep golden, and the cake will start to pull just slightly from the edges.
8. Cool, then invert. Let the cake cool in the pan before turning it out onto a plate. If you invert too early, the cake can tear; if you wait until it’s cool, it releases more cleanly and keeps those sharp Bundt details.

Tips for Best Results

• Grease the Bundt pan aggressively—every groove. A clean release is half the win with this cake, and the ridges love to cling.
• Stop mixing as soon as the last streak of flour disappears; overmixing can make the crumb tighter and less tender.
• Use truly softened butter for creaming (soft enough to press a fingertip into easily). If it’s too cold, the batter won’t aerate as well.
• Watch for visual “doneness” cues: a fully set top, deeper golden color, and a toothpick that comes out clean.
• Cool in the pan before inverting so the crumb has time to firm up and the swirl layer doesn’t shift.

For another fast cinnamon fix when you don’t want to heat the oven, I also like pointing friends to a quick cinnamon mug bake—it scratches the itch while this Bundt cools.

Variations and Substitutions

• More pronounced swirl: Sprinkle a slightly thicker layer of cinnamon-sugar in the middle (still keeping it even so the cake slices neatly).
• Vanilla-forward: Keep the cinnamon as-is and don’t add extra; the 1 teaspoon vanilla stays clear and fragrant when cinnamon isn’t overpowering.
• No buttermilk: You can use a different dairy, but expect a less tender crumb and a milder flavor (buttermilk is doing real work here).

If you’re on a cinnamon kick and want a single-serve alternative for a smaller household, this cinnamon roll mug recipe is a fun contrast in texture and timing.

How to Serve It

Serve thick slices slightly warm or at room temperature—either way, the cinnamon aroma comes through. I like it with coffee or black tea, and it’s especially good when the cake is fully cooled (the crumb slices cleaner and the cinnamon notes taste a touch deeper). If you’re plating it for guests, set the Bundt on a wide plate so the ridges show off, and cut with a serrated knife for neat slices.

If you’re choosing between quick and cozy, it’s helpful to compare this sliceable Bundt to a microwave mug cinnamon roll—same warm spice, totally different payoff.

How to Store It

Store the cake covered at room temperature for a couple of days so it stays soft and tender. For longer keeping, wrap slices well and refrigerate; let them come to room temperature before serving for the best texture. You can also freeze slices tightly wrapped—thaw at room temperature until the crumb is soft again.

Final Thoughts

This cinnamon swirl Bundt is the kind of recipe that feels simple while still giving you that special, bakery-style look—golden ridges, a tender buttermilk crumb, and cinnamon warmth in every slice.

Conclusion

If you’d like to compare notes with other cinnamon Bundt-style bakes, check out the classic approach in Cinnamon Swirl Bundt Coffee Cake, the cinnamon-roll-inspired styling in Cinnamon Roll Bundt Cake, and the richer, pound-cake-leaning take in Famous Cinnamon Roll Bundt Cake.