This 6-inch Single Layer Chocolate Cake is tender, moist, and perfectly chocolatey—ideal for sharing or enjoying solo. Top it with a dusting of powdered sugar, or spread on a small batch of rich milk chocolate frosting and finish with rainbow jimmies for a playful touch. Don’t forget a cold glass of milk alongside.
Table of Contents
- Why You’ll Love this Recipe
- Ingredients Needed
- How to Make This Recipe
- Can I Make this Recipe in Advance?
- How to Freeze a Single Layer Cake (Unfrosted)
- Can I Freeze Frosted Cake Slices?
- Recommended Baking Tools
- More Small Batch Desserts to Enjoy!
- Single Layer Chocolate Cake Recipe
Why You’ll Love this Recipe
- A single 6-inch chocolate cake—small batch, big flavor
- Soft, moist texture
- Rich chocolate taste in every bite
- Simple to prepare with everyday pantry ingredients
- Perfect for sharing with one special person or for a small celebration
- Pairs with a small batch milk chocolate frosting or a dusting of powdered sugar
- Optional sprinkles add a cheerful finish
If you love chocolate but don’t want a multi-layer cake, this one-batter 6-inch cake is ideal. Adapted from a small-batch cupcake recipe, it’s straightforward and reliably delicious.
Ingredients Needed
These are the ingredients for the 6-inch single layer chocolate cake and optional small-batch milk chocolate frosting. Most are common pantry items.
- All-purpose flour — any brand will work.
- Granulated sugar and light brown sugar — light brown sugar should be lightly packed.
- Unsweetened cocoa powder — regular or extra-dark works; Dutch-processed or black cocoa were not tested.
- Baking powder and baking soda — ensure they’re fresh.
- Salt — a small amount to balance flavor.
- One large egg — room temperature is best.
- Milk — 1% was used, but 0–2% or lactose-free milk are fine; non-dairy milks were not tested.
- Vegetable oil — adds moisture.
- Vanilla extract — pure is preferred.
- Hot water — hot to the touch (not boiling) to bloom cocoa and dissolve instant espresso if using.
Optional Ingredients
These additions boost chocolate depth or add a festive finish.
- Dark chocolate — a small amount of melted dark chocolate (chips or a bar) enhances richness.
- Espresso powder — dissolve in the hot water to intensify chocolate flavor; instant coffee can substitute.
- Rainbow jimmies — for decorating the frosted cake.
How to Make This Recipe
No mixer required for the cake. All you need are mixing bowls, whisks, and a spatula. A hand or stand mixer is helpful for the frosting.
Prep the pan carefully. Grease and flour a 6-inch pan or use a flour-based baking spray and a parchment circle for easy release.
Mix gently. Combine dry ingredients, whisk wet ingredients separately, then fold until just combined—avoid over-mixing to keep the cake tender.
Add optional ingredients if desired. Stir melted chocolate into the wet ingredients and dissolve espresso powder in hot water before combining. Melted chocolate can slightly affect the cake top, causing a minor sink in the center; this is normal.
Use the toothpick test: bake until a toothpick inserted in the center comes out clean.
Use cake strips for a flatter top. They help bake the cake evenly and reduce doming.
Cool completely. Let the cake rest in the pan about 10 minutes, then invert onto a wire rack to cool fully. If frosting the same day, make sure it is completely cool before applying frosting.
Keep it simple if you prefer. A light dusting of powdered sugar tastes great and requires no frosting skills.
Can I Make this Recipe in Advance?
Yes. The unfrosted 6-inch cake freezes well for up to 2 months when wrapped and stored properly. The milk chocolate frosting keeps in a sealed container in the refrigerator for 2–3 days; re-whip briefly before spreading if needed.
How to Freeze a Single Layer Cake (Unfrosted)
To freeze: cool completely, wrap tightly in 2–3 layers of plastic wrap, place into a freezer bag, and store flat. Label with the date.
To defrost for frosting: move the cake to the refrigerator 2–3 hours before decorating. Slight chill helps reduce crumbs while frosting.
Can I Freeze Frosted Cake Slices?
Yes. Wrap each slice tightly in plastic wrap, add a layer of aluminum foil, label, and freeze on a flat surface. Slices keep up to 2 months. Thaw at room temperature or in the refrigerator.
Recommended Baking Tools
Helpful tools for this recipe:
- 6-inch cake pan — a small pan gives the perfect single-layer size.
- Mixing bowls — for dry and wet ingredients.
- Glass measuring cup — useful for melting chocolate in the microwave.
- Whisks and spatulas — for mixing and folding the batter.
More Small Batch Desserts to Enjoy!
Chocolate Brownie Ice Cream
Mini Strawberry Sheet Cake
Individual No-Bake Strawberry Cheesecakes
Small Lemon Cream Cheese Pound Cake
Single Layer Chocolate Cake
Ingredients
6 inch single layer chocolate cake
- 1/2 cup All-Purpose Flour
- 1/4 cup Granulated Sugar
- 1/4 cup Light Brown Sugar, lightly packed
- 1/4 cup Unsweetened Cocoa Powder
- 1/2 tsp Baking Powder
- 1/2 tsp Baking Soda
- 1/8 tsp Salt
- 1 Large Egg
- 1/4 cup Milk (any type; 1% used)
- 2 tbsp Vegetable Oil
- 1/2 tsp Vanilla Extract
- 2 tbsp Hot Water
- 1 oz Dark Chocolate (optional), melted
- 1/2 tsp Espresso Powder (optional), dissolve in the hot water
- 1/2 cup Rainbow Jimmies (optional), for garnish
small batch milk chocolate frosting
- 2.5 oz Milk Chocolate Chips
- 6 tbsp Unsalted Butter, room temperature
- 1/3 cup Sifted Powdered Sugar
- 1/4 cup Unsweetened Cocoa Powder
- 1/8 tsp Salt
- 2 tbsp Light Corn Syrup
- 1 tsp Vanilla Extract
Instructions
6 inch single layer chocolate cake
- Adjust the oven rack to the second position from the bottom (just above center) and preheat to 350°F. Grease and flour a 6-inch cake pan or spray with a flour-based baking spray and line the bottom with a parchment circle if you like.
- If using dark chocolate, melt it in 30–45 second bursts in a microwave-safe bowl until smooth; set aside to cool slightly.
- Whisk together the flour, granulated sugar, light brown sugar, cocoa powder, baking powder, baking soda, and salt in a small bowl; set aside.
- In another bowl, whisk the egg, milk, vegetable oil, vanilla, and hot water mixed with the espresso powder (if using).
- Stir the melted chocolate into the wet ingredients, then add the dry ingredients and whisk until just combined. Do not over-mix.
- Pour the batter into the prepared pan and bake 25–28 minutes at 350°F, or until a toothpick inserted in the center comes out clean.
- Cool the cake in the pan for 10 minutes, then invert onto a wire rack to cool completely.
- When cool, dust with powdered sugar or frost with the milk chocolate frosting and top with rainbow jimmies if desired.
small batch milk chocolate frosting (optional)
- Melt the milk chocolate in a microwave-safe bowl in 30–45 second intervals until smooth; allow to cool slightly.
- Using a hand or stand mixer with the paddle attachment, beat the butter, powdered sugar, cocoa powder, and salt on medium speed until combined, scraping the bowl as needed.
- Add light corn syrup, vanilla, and the melted milk chocolate, and mix until smooth. Frost the completely cooled cake.
Video
Notes
- Recipe adapted from a small-batch chocolate cupcake and small-batch frosting recipes.
- Store a frosted cake wrapped in plastic wrap in the refrigerator for up to 3 days.
Nutrition
Nutritional information is an estimate and will vary based on ingredients used.
