This mini carrot cake is a lightly spiced, two-layer 6-inch cake with an exceptionally tender crumb and a pleasant crunch from toasted walnuts. It’s finished with a tangy cream cheese frosting — a classic, well-balanced combination.

This mini carrot cake uses the same tested batter as my carrot cupcakes, adapted here for a 6-inch two-layer cake. Separating the recipes makes it easier to find targeted tips for baking and assembling a small cake.
The recipe is a reader favorite with many positive reviews. Try it and, if you like it, leave a star rating and review at the bottom of the post.
Table of Contents
- Why this recipe works
- Ingredients and substitutions
- Tools you’ll need
- How to make mini carrot cake
- More baker’s tips
- FAQs
- Storage
- More 6-inch cake recipes
- Mini Carrot Cake Recipe
Why this recipe works
- Yield: a small, two-layer 6-inch carrot cake — perfect for small gatherings or celebrations.
- Shredded carrot keeps the cake moist for several days.
- Light warm spices let the carrot and cream cheese frosting shine.
- Toasted walnuts add texture and a deeper nutty flavor.
- Simple method suitable for home bakers and helpful for involving kids.
Ingredients and substitutions
The full ingredient list and quantities are in the recipe card below. Notes and substitution tips:

- Flour – use all-purpose flour.
- Leavening – both baking soda and baking powder provide lift and tenderness.
- Salt – kosher salt is recommended; if using table salt, reduce the amount to about half to two-thirds.
- Spices – cinnamon and a pinch of nutmeg keep the cake gently spiced. Adjust to taste; ginger is a good complementary option.
- Buttermilk – store-bought buttermilk is ideal. You can make a substitute by adding lemon juice or vinegar to milk, or use yogurt or sour cream in place of buttermilk.
- Oil – neutral oils (vegetable or canola) keep the cake moist. Olive oil may add flavor if you prefer.
- Sugar – light brown sugar adds richness and moisture; granulated sugar can substitute if needed.
- Egg – one large egg binds the batter.
- Vanilla – pure vanilla extract enhances overall flavor; avoid artificial imitations.
- Carrot – freshly shredded carrots are essential; 2 medium carrots (about 8 oz) yield roughly 1 1/4 cups shredded.
- Walnuts – toasted and chopped for texture; pecans are a fine substitute.
- Cream cheese – use full-fat cream cheese for richer frosting.
- Butter – unsalted butter for the frosting; avoid salted butter.
- Powdered sugar – sweetens the frosting; add more if you prefer a sweeter finish.

Tools you’ll need
You can mix most steps by hand, but these tools make the job easier:
- Food processor or box grater to shred carrots.
- Two 6″ x 2″ round cake pans for even layers.
- Stand mixer or hand mixer to make smooth cream cheese frosting.
- Kitchen scale (recommended) for accurate measurements and evenly dividing batter.
How to make mini carrot cake
Below are concise, step-by-step directions. For the printable recipe card, see the recipe section at the end.
Make the carrot cake batter
Toast walnuts in a dry skillet over medium heat for 3–5 minutes until fragrant; cool and chop. Peel and shred carrots (a food processor or box grater works well) to yield about 1 1/4 cups. Preheat the oven to 350°F. Brush two 6″ pans with melted butter and line the bottoms with parchment rounds.
Whisk buttermilk, oil, egg, and vanilla in a large bowl. Stir in brown sugar until dissolved, then fold in shredded carrot. In a separate bowl sift flour, baking soda, baking powder, cinnamon, nutmeg, and salt. Fold the dry ingredients into the wet ingredients until just combined, then fold in toasted walnuts.
Divide batter evenly between the two prepared pans (about 425 g per pan if using a scale) and bake for 30–31 minutes, or until a toothpick inserted in the center comes out clean with a few moist crumbs. Cool in pans on a wire rack for 10–15 minutes, then invert onto racks, remove parchment, and cool completely before frosting.

Tip: Toasting walnuts enhances flavor — it’s a quick step that makes a big difference.
Make the frosting
Cream room-temperature butter and cream cheese until smooth. Add vanilla, then gradually beat in powdered sugar until the frosting is fluffy. If the frosting becomes too soft, chill it for 15–20 minutes to firm up before using.

Assemble when cakes are completely cool: place one layer on a serving plate, spread about 1/2 cup frosting, top with the second layer, then frost the top and sides. Garnish with additional chopped walnuts if desired. Refrigerate at least 30 minutes to set the frosting before serving.
Tip: If you want a richer frosting, fold in strained brown butter (cooled) in place of some or all of the butter.
More baker’s tips
- Two medium carrots (about 8 oz) will yield the shredded amount needed; weighing carrots gives consistent results.
- Do not tightly pack shredded carrot when measuring; too much carrot can make the batter overly wet.
- If you don’t have a scale for dividing batter, use an ice cream scoop or eyeball equal portions for each pan.
- This cake yields about 8 good-sized slices or 6 generous portions.
- For pineapple-like flavor without changing the cake, try a pineapple-flavored frosting.
FAQs
Yes — if you have a single 6″ pan with taller sides, you can bake the full batter in one pan and slice it horizontally once cooled to make two layers. Expect a longer bake time and test doneness with a toothpick.
Instead of doubling this small recipe, consider using a full-size carrot cake recipe designed for 8″ or 9″ pans for more consistent results.
Yes — this batter works well for cupcakes. Bake times will be shorter; consult a cupcake-specific post or reduce bake time and test for doneness.

Storage
Room temperature: The cake can sit on the counter for a few hours while serving.
Refrigerator: Store leftovers in the fridge for up to one week.
Freezer: Freeze the whole cake or individual slices for up to three months. Chill or flash-freeze the frosted cake first so the frosting firms, then wrap tightly and place in a freezer-safe bag. Thaw overnight in the refrigerator or a few hours at room temperature before serving.
More 6-inch cake recipes
- Mini Chocolate Cake
- Mini Strawberry Cake
- Mini Birthday Cake
- Mini Lemon Cake
- Mini Blueberry Lemon Cake
Hungry for more?
Join the free newsletter for weekly recipes, inspiration, and occasional giveaways for subscribers.
Mini Carrot Cake
8 slices

Ingredients
Carrot Cake
- 1 1/4 cups all-purpose flour (162 g)
- 1/4 teaspoon kosher salt
- 1/2 teaspoon baking soda
- 1/2 teaspoon baking powder
- 1/2 teaspoon cinnamon
- 1/8 teaspoon nutmeg
- 3/4 cup buttermilk (180 g)
- 1/2 cup vegetable oil (107 g)
- 1 large egg
- 1/2 teaspoon pure vanilla extract
- 3/4 cup light brown sugar, lightly packed (144 g)
- 1 1/4 cup shredded carrot (170 g)
- 1/4 cup chopped walnuts, toasted (30 g)
- More walnuts for topping, if desired
- Melted butter for preparing pans
Cream Cheese Frosting
- 8 oz cream cheese, room temperature (227 g)
- 4 oz unsalted butter, room temperature (113 g)
- 1 teaspoon pure vanilla extract
- 3/4 cup powdered sugar (75 g), adjust to taste
Instructions
- Make the batter: Toast walnuts 3–5 minutes in a dry skillet. Cool and chop. Shred carrots to total about 1 1/4 cups.
- Preheat oven to 350°F (175°C). Brush two 6″ cake pans with melted butter and place parchment rounds in the bottoms.
- In a large bowl, whisk together buttermilk, oil, egg, and vanilla. Stir in brown sugar until dissolved, then fold in shredded carrot.
- Sift flour, baking soda, baking powder, cinnamon, and nutmeg into a bowl. Add salt and whisk. Fold the dry mixture into the wet ingredients until just combined, then fold in walnuts.
- Divide batter evenly between the two pans (about 425 g per pan). Bake 30–31 minutes, or until a toothpick comes out clean with a few moist crumbs.
- Cool in pans 10–15 minutes, loosen sides, invert onto racks, peel off parchment, and cool completely.
- Frosting: Beat butter and cream cheese until creamy. Add vanilla, then gradually add powdered sugar and beat until fluffy. Chill briefly if too soft.
- Assemble: Place one cake on the plate, add about 1/2 cup frosting, level, top with the second layer, then frost top and sides. Garnish with chopped walnuts if desired. Refrigerate at least 30 minutes to set.
Notes
- Use neutral oils like vegetable or canola; olive oil will add flavor.
- No buttermilk? Use milk, sour cream, yogurt, or make a quick homemade buttermilk.
- Two medium carrots (about 8 oz) should yield the correct shredded volume.
- If you don’t have a scale, use an ice cream scoop to portion batter evenly between pans.
- This cake serves 8 standard slices or 6 generous portions.
Nutrition
Nutrition estimates are approximate and provided for guidance only.
Like this recipe? Rate & comment below!This post may contain affiliate links. Affiliate partnerships help support the site at no extra cost to you. Thank you for your support.