A Southern-Style Chocolate Sheet Cake: From the Netherlands to Tennessee
A time-enduring cake that transcends an ocean
“My grandmother’s chocolate cake is built on continuity rather than novelty. It’s a recipe shaped by migration, land, and repetition, made the same way year after year because it works. Simple ingredients, handled with confidence, come together in a batter that’s reliable, forgiving, and deeply familiar. Nothing here is flashy or overworked; the power is in the balance. The result is a Southern chocolate cake that feels grounded and generous, the kind of bake that carries history in its crumbs and still knows how to stop a room when it’s set on the table.”
—Stone 👨🏼🍳
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Equipment Used in the Video Tutorial
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✔9X13x3 inch baking tin (to bake the cake)
✔Cookie scoop/stainless steel disher (for evenly applying frosting)
✔KitchenAid 7-speed cordless electric hand mixer (easy to use)
✔11-inch balloon whisk (for blending dry ingredients)
✔Digital kitchen scale (for measuring accurately and easily)
✔Mixing bowls (10 Heat-proof Glass for dry and wet ingredients separately)
✔Spatulas (rubber/silicone for folding batter and scraping bowls)
✔Mesh strainers/sieves (for shifting dry ingredients)
✔Cooling racks (to cool cake)
The journey behind the cake
In our Mountaintop Kitchen, my grandmother’s southern chocolate cake is never just dessert; it’s a breadcrumb trail through time. Our people began in the Netherlands, crossed an uncertain ocean, and put down roots in North Carolina, where the Kuykendalls eventually split three ways: north to New York, west to Tennessee, and farther still toward the setting sun out west. My branch chose Tennessee, working the land with flour-dusted hands and iron skillets always close by. In that red-clay place, thrift met generosity, and recipes were measured by feel and memory. My grandmother baked the way her people lived: practical, steadfast, and quietly indulgent. She turned humble cocoa into something rich enough to gather everyone to the table, a deep, tender, southern-style chocolate cake.
The Dutch revolutionized chocolate cake baking following Coenraad van Houten’s 1828 invention of the cocoa press, which created Dutch-processed cocoa powder. While chocolate was used in desserts earlier, this invention made cocoa smoother, less bitter, and more affordable, enabling the first true chocolate cake recipes to appear in the mid-19th century.
Once the batter is poured, the pace softens. The oven hums. The chocolate rises and settles into its tender crumb. There’s no hurry now, just the quiet wait while the kitchen fills with cocoa and warmth.
When the cake cools and the ganache whips to soft peaks, you spread and swirl, letting the frosting catch the light in broad, confident strokes. And when you slice into it, you’ll see it clearly: richness without heaviness, drama without excess.
A humble sheet cake, elevated. Ready to be shared and celebrated…one generous square at a time.
So, welcome into our Mountaintop Kitchen, where deep chocolate meets decadent whipped ganache and every slice feels like a party. 🍫
Why You’ll Love This Chocolate Sheet Cake
Deep chocolate intensity without heaviness — espresso blooms the cocoa, creating layered flavor that tastes rich but never cloying
Plush, dependable crumb — oil and buttermilk keep the texture moist for days, with clean slices and no crumbling
Hand-mixer simple — straightforward mixing method designed for confidence and consistency
Dramatic whipped ganache swirls — glossy peaks that hold their shape and photograph beautifully
Balanced sweetness — 60–70% chocolate keeps the frosting structured and refined, not sugary
Made for a 9x13-inch pan — approachable, portable, and perfect for gatherings, potlucks, or family celebrations
Make-ahead friendly — bake the cake one day, frost the next for even sharper definition and calmer pacing
Quietly show-stopping — humble sheet cake form, elevated through technique and finish
The Recipe:
On Measuring Ingredients: My preferred method of measuring is weight by grams. Baking by volume rather than weight can lead to varied and unexpected results. Flour is especially problematic when measured by volume (sifted, not sifted, spooned, not spooned, fluffed or not … you get the point). Grams are always the same; they are your friend as a baker. King Arthur Baking Company’s Ingredients Weight Chart is helpful for converting recipe weights.
On Altitude Adjustments: Before measuring ingredients, preheating your oven, or setting your timer; it’s important to consider any necessary adjustments for baking at higher altitudes, which is generally considered to be 3,500ft and above. Most recipes are written for sea level up to 3,500ft. Take at look at our baking at High-Altitude Baking Adjustments page for guidance.
Yield / Servings
12–15 servings
Timing & Workflow Overview
Hands-On: ~25–30 minutes (mixing batter, preparing pan, making ganache, whipping, frosting)
Passive: ~1½ hours
(baking, cooling, chilling ganache to whipping stage)
Overall: ~2 hours start to finish
(or split over two stages — bake cake in the morning, frost in the afternoon for cleaner swirls and calmer pacing)
Oven Temperatures
Conventional: 350°F (175°C)
Convection: 325°F (165°C)
Chocolate Sheet Cake
1½ cups (300 g) granulated sugar
1 cup (240 ml) vegetable oil
2 large eggs (100 g) at room temperature
2¼ cups (280 g) all-purpose flour
½ cup (50 g) unsweetened cocoa powder
1½ tsp (6 g) baking soda
1 tsp (6 g) fine sea salt
1⅓ cups (315 ml) buttermilk
1 cup (240 ml) boiling water or very hot coffee
Whipped Chocolate Ganache Frosting
12 oz (340 g) bittersweet or semisweet chocolate, finely chopped (50–70% cacao recommended)
1½ cups (360 ml) heavy cream, divided
2 Tbsp (28 g) unsalted butter, room temperature
¼ tsp (1.5 g) fine sea salt
1 tsp (5 ml) vanilla extract
2 Tbsp (15 g) powdered sugar, optional
Method
1. Prepare the Pan
Line a 9x13-inch pan with parchment, leaving overhang for lifting. Lightly grease. Or simply grease & flour the pan with if the cake will not be removed for slicing.
2. Make the Cake
Cream oil and sugar—Beat vegetable oil and sugar until smooth.
Add eggs—Add eggs and continue beating until fluffy and light in texture.
Combine dry ingredients—In a separate bowl, mix cocoa, flour, salt, and baking soda.
Alternate wet and dry—Add buttermilk and flour mixture alternately to the batter, mixing very slowly until just blended. Do not overmix.
Fold in boiling water—Gently fold in boiling water (or hot espresso) by hand. Batter will be thin — this is correct.
Bake—Pour into prepared pan and bake at 325°F (350°F at sea level) for 40 minutes, or until a toothpick inserted in the center comes out with a few moist crumbs.
Cool—Allow cake to cool completely before frosting.
3. Make the Whipped Ganache
Heat cream—Warm 1 cup (240 ml) of cream to a gentle simmer (do not boil).
Make ganache—Pour hot cream over chopped chocolate. Cover and let sit 2 minutes. Stir slowly from the center until smooth and glossy. Add butter, vanilla, salt, and powdered sugar (if using). Stir until fully melted and emulsified.
Chill to whipping consistency—Stir in remaining ½ cup (120 ml) cold cream. Refrigerate 30–60 minutes, stirring once halfway, until thickened but not firm.
Whip—Whip using a hand mixer with whisk attachment 30–60 seconds until light and fluffy. Stop at soft-to-medium peaks.
4. Frost Cake
Spoon whipped ganache onto cooled cake.
Use an offset spatula or back of a spoon to create thick, glossy swirls.
For clean slices, chill frosted cake 20 minutes before cutting.
Storage
Room Temperature: Keep the baked cake in an airtight container or covered pan for up to 2 days. Ganache will stay glossy, and the crumb remains tender.
Refrigerated: For longer keeping, refrigerate up to 5 days. Bring to room temperature before serving to restore aroma and softness.
Freezer-Friendly Cake: Slice or whole, the cake freezes well for up to 2 months. Wrap tightly in plastic and foil. Thaw fully at room temperature before frosting or serving.
Frosted Cake: Once frosted, store in a cool, dry place. Avoid refrigeration unless necessary; condensation can dull ganache shine.
Mountaintop Baker’s Notes
This cake balances structure and richness — espresso and buttermilk deliver moisture without heaviness.
Whipped ganache is delicate: chill before whipping, but don’t let it solidify. Timing is everything.
Clean slices are easier after brief chilling; gentle care preserves swirls and definition.
For even baking, use a metal pan and avoid overfilling. The batter rises consistently without doming.
Cake improves overnight: flavors deepen, crumb firms slightly, and ganache holds its peaks.
Nutrition Estimate
Final values may vary depending on specific ingredients. Nutrition Disclaimer
(Per serving, ~15 servings. Approximate values.)
Calories: ~420 kcal
Total Fat: ~30 g
Saturated Fat: ~18 g
Carbohydrates: ~38 g
Sugars: ~28 g
Protein: ~4 g
Fiber: ~3 g
Sodium: ~220 mg
Allergen Notes
Contains: Wheat (gluten), dairy (cream, butter, chocolate), eggs
Gluten-Free Option: Substitute with high-quality 1:1 gluten-free flour blend; batter may be slightly thinner, adjust baking time slightly.
Dairy-Free: Not recommended; cream and butter are critical for ganache structure and texture.
Nut-Free: Base recipe is nut-free; verify toppings if adding garnishes.
Variation Notes
Chocolate Adjustment: Use 55–70% chocolate for ganache to tweak sweetness and firmness.
Citrus Accent: Add orange or blood orange zest to the ganache for brightness.
Spice Thread: A pinch of espresso powder or cinnamon in batter elevates warmth and depth.
Finish Control: Frost only when the cake is fully cooled to prevent melting or streaking.
Make-Ahead Strategy: Bake the cake one day, whip ganache and frost the next for best peak definition and clean slices.
Until the Next Bake: Thanks for joining me here at the Mountaintop Kitchen. I’m Stone, and I’ll see you next time with more bakes, more flavors, and more stories from the kitchen. Until then—keep your ovens warm and your aprons tied.
P.S. Love what you’re baking with me? Don’t forget to subscribe to the newsletter for first looks at new recipes, and join the Mountaintop Kitchen YouTube channel to see every swirl, scoop, and sizzle in action! —Stone👨🏼🍳
The Mountaintop Kitchen recipe newsletter is available to everyone. If you like it, please subscribe and/or share it with someone else you think will also like it. —Stone The Mountaintop Baker👨🏼🍳
