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+ servings
an orange whole grain cake with chocolate ganache and pumpkins made out of fondant on top

Chocolate Orange Halloween Cake (100% whole grain)

Author Erin Dooner
Course Dessert
Cuisine American
Servings 16 slices
Prep Time 1 hour
Cook Time 25 minutes
Total Time 4 hours
This chocolate orange Halloween cake is 100% whole grain and sure to be a crowd pleaser!

Ingredients

Chocolate cake:

  • 2/3 cup (166 grams) granulated sugar
  • 3/4 cup + 2 tablespoons (115 grams) whole wheat flour or whole spelt flour
  • 1/4 cup + 2 tablespoons (42 grams) cocoa powder I used Dutch-process
  • 3/4 teaspoon baking powder
  • 3/4 teaspoon baking soda
  • 1/2 teaspoon salt
  • 1 large egg 50 grams, out of shell
  • 1/2 cup (118 ml) milk of choice
  • 1/4 cup (60 ml) olive oil or canola or vegetable oil
  • 1 teaspoon vanilla extract
  • 1/2 cup (118 ml) boiling water

Orange cake:

  • 7 tablespoons olive oil or canola or vegetable oil
  • 1/2 cup + 2 tablespoons (125 grams) granulated sugar
  • 2 large eggs 50 grams each, out of shell
  • 2 tablespoons orange zest
  • 1 1/4 cup (125 grams) whole spelt or whole wheat pastry or whole wheat flour
  • 1 1/2 teaspoons baking powder
  • 1/4 teaspoon salt
  • 3 tablespoons orange juice
  • orange food coloring if desired

Chocolate cream cheese filling:

  • 8 ounces (225 grams) cream cheese
  • 1/4 cup (56 grams) unsalted butter room temperature
  • 2 to 3 cups (260 to 390 grams) powdered sugar sifted
  • 1/2 cup (55 grams) cocoa powder I used Dutch-process

Orange buttercream:

  • 6 tablespoons (85 grams) butter room temperature
  • 5 to 6 cups (650 to 780 grams) powdered sugar
  • 1/4 cup (60 ml) orange juice
  • 1/2 teaspoon vanilla
  • 2 tablespoons orange zest
  • 2 tablespoons milk of choice if needed
  • food coloring orange, if desired

Chocolate ganache:

  • 4 1/2 ounces (125 grams) semi-sweet chocolate chips or chopped chocolate
  • 1/2 cup (118 ml) heavy cream

Instructions

For the chocolate cake:

  • Preheat the oven to 350°F / 175°C. Grease two 6-inch pans. You could use 8-inch pans, but the layers will be thinner and you need to reduce the baking time.
  • In a large bowl, stir together the sugar, flour, cocoa powder, baking powder, baking soda and salt. Add the eggs, milk, oil and vanilla, and mix for 2 minutes on medium speed with a hand mixer. Then stir in the boiling water. Batter will be very thin, almost as watery as water.
    2/3 cup (166 grams) granulated sugar, 3/4 cup + 2 tablespoons (115 grams) whole wheat flour, 1/4 cup + 2 tablespoons (42 grams) cocoa powder, 3/4 teaspoon baking powder, 3/4 teaspoon baking soda, 1/2 teaspoon salt, 1 large egg, 1/2 cup (118 ml) milk of choice, 1/4 cup (60 ml) olive oil, 1 teaspoon vanilla extract, 1/2 cup (118 ml) boiling water
  • Pour evenly into the prepared pans. I use a scale to make sure that they’re even. Bake for 20 – 25 minutes or until a toothpick inserted in the middle comes out clean. This cake is super super moist. Don’t overbake! Cool for about 5 minutes in the pan, and then turn out onto a wire rack. Clean the pans so you can start with the orange cake.

For the orange cake:

  • Preheat the oven to 340°F / 170°C. Grease two 6-inch pans.
  • Combine the olive oil and sugar. Add the eggs and orange zest. Beat well. Add the flour, baking powder and salt and then slowly mix in the orange juice. If you want the layers to be orange, you’ll have to use a little food coloring. It doesn’t take much (definitely waaay less than red velvet cake), at least when using icing gel.
    7 tablespoons olive oil, 1/2 cup + 2 tablespoons (125 grams) granulated sugar, 2 large eggs, 2 tablespoons orange zest, 1 1/4 cup (125 grams) whole spelt, 1 1/2 teaspoons baking powder, 1/4 teaspoon salt, 3 tablespoons orange juice, orange food coloring
  • Bake for 25 – 30 minutes or until a toothpick inserted in the middle comes out clean. Let it cool in the pan.

For the chocolate cream cheese filling:

  • Beat the cream cheese and butter until fluffy.
    8 ounces (225 grams) cream cheese, 1/4 cup (56 grams) unsalted butter
  • Add the powdered sugar, one cup at a time.
    2 to 3 cups (260 to 390 grams) powdered sugar
  • Add the cocoa powder. Beat until fluffy! And try not to eat it all. You’ll need some for the cake.
    1/2 cup (55 grams) cocoa powder
  • Germans: I used a 300 gram package and drained it a bit. It turned out to be around 225 grams. It’s just too runny if you don’t drain it at all.

For the orange buttercream:

  • Cream together the butter and 2 cups of the powdered sugar. Stir in the orange zest and then the juice, and mix thoroughly. Beat in another 2 cups of powdered sugar and then the vanilla. Add the remaining sugar and beat very well. It should be fluffy. If you need a little milk, add it. If you want it orange, use a little food coloring.
    6 tablespoons (85 grams) butter, 5 to 6 cups (650 to 780 grams) powdered sugar, 1/4 cup (60 ml) orange juice, 1/2 teaspoon vanilla, 2 tablespoons orange zest, 2 tablespoons milk of choice, food coloring
  • There was quite a bit leftover, but I’m worried that 2/3 of the recipe might not be enough.

For the chocolate ganache:

  • Place the chocolate in heatproof bowl. In a saucepan over medium heat, bring the cream to a boil. Pour the cream over the chocolate and stir until melted.
    1/2 cup (118 ml) heavy cream, 4 1/2 ounces (125 grams) semi-sweet chocolate chips

To assemble the cake:

  • Once your layers are completely cool, cut each layer horizontally in half so you have a total of eight layers. I used a cake leveler, but use whatever way you’re used to. You can start with either orange or chocolate on the bottom. I used about 2 tablespoons of filling on each layer, but I ended up with quite a bit leftover. I’d suggest using about 3 tablespoons of filling per layer.
  • Apply a crumb coat using the orange icing. It can be messy. Look at mine. Notice all the crumbs and how crooked my cake is. I’m just not good at this decorating thing.
  • I let mine sit in the fridge for a few hours until it was hard. And I mean hard.
  • Add more orange icing. Make it pretty this time and then let it sit in the fridge again for another hour or so, or until it’s hard or almost hard.
  • Pour on the chocolate ganache. I just poured all the chocolate in the middle of the cake and hoped it would run down nicely.
  • Shortly before serving, put on the fondant pumpkins. Here's the fondant pumpkin tutorial.

Notes

Nutrition

Calories: 522kcalCarbohydrates: 57gProtein: 9gFat: 30gSaturated Fat: 13gPolyunsaturated Fat: 2gMonounsaturated Fat: 12gTrans Fat: 0.3gCholesterol: 74mgSodium: 343mgPotassium: 303mgFiber: 9gSugar: 26gVitamin A: 671IUVitamin C: 21mgCalcium: 102mgIron: 4mgNet Carbs: 48
Tried this recipe?Tag me today! Mention @texanerin or tag #texanerin! Thanks. 🖤