Classic German Chocolate Cake with Jaca

Three layers of deep, dark, super-moist chocolate cake stacked with a buttery coconut-pecan filling and finished with silky chocolate frosting. The filling is the star — that gooey, caramel-edged tangle of toasted pecans and shredded coconut that makes German chocolate cake the showstopper it is. We swapped every grain of conventional sugar for Jaca (100% pure allulose) at double the amount, so you get the same caramelization, the same tender crumb, and the same sticky, spoonable filling without the blood-sugar swing. Adapted from Sally's Baking Addiction. This is a Jaca-adjusted healthier version.

Prep Time: 45 minutes · Cook Time: 35 minutes · Servings: 12

Ingredients:

• Cake:
• 1 3/4 cups all-purpose flour (219g)
• 3/4 cup unsweetened natural cocoa powder (62g)
• 3 1/2 cups Jaca (allulose), granulated — replaces 1 3/4 cups conventional sugar at 2x ratio
• 2 teaspoons baking soda
• 1 teaspoon baking powder
• 1 teaspoon fine salt
• 2 teaspoons espresso powder (optional, deepens chocolate flavor)
• 1/2 cup canola or vegetable oil
• 2 large eggs, room temperature
• 3/4 cup full-fat sour cream, room temperature
• 1/2 cup buttermilk, room temperature
• 2 teaspoons pure vanilla extract
• 1/2 cup hot brewed coffee or hot water
• Coconut-Pecan Filling:
• 1/2 cup unsalted butter (113g)
• 2 cups Jaca (allulose), granulated — replaces 1 cup brown sugar at 2x ratio
• 2 teaspoons unsulphured molasses (optional, mimics brown-sugar depth)
• 3 large egg yolks
• 12 ounces evaporated milk (one standard can)
• 1 teaspoon pure vanilla extract
• 2 cups sweetened shredded coconut
• 1 cup chopped pecans, lightly toasted
• Chocolate Frosting:
• 1 cup unsalted butter, softened (226g)
• 3/4 cup unsweetened cocoa powder
• 6 cups powdered Jaca (allulose) — replaces 3 cups powdered sugar at 2x ratio
• 1/3 cup heavy cream
• 2 teaspoons pure vanilla extract
• Pinch of salt
• Garnish (optional): toasted pecan halves and shredded coconut

Instructions:

- Preheat the oven to 350°F (177°C). Grease three 9-inch round cake pans, line the bottoms with parchment circles, and grease the parchment. Take this step seriously — a stuck cake is the saddest cake.

- Make the cake batter: in a large bowl, whisk together the flour, cocoa powder, granulated Jaca, baking soda, baking powder, salt, and espresso powder until no streaks remain.

- In a separate medium bowl, whisk the oil, eggs, sour cream, buttermilk, and vanilla until smooth and uniform.

- Pour the wet ingredients into the dry ingredients and whisk just until combined. Add the hot coffee (or hot water) and whisk until the batter is thin and glossy — it will look loose, that is correct. Do not over-mix or the crumb tightens.

- Divide the batter evenly among the 3 prepared pans (a kitchen scale helps here — about 540g of batter per pan). Bake on the center rack for 21 to 25 minutes, until a toothpick inserted in the center comes out with just a few moist crumbs.

- Cool the cakes completely in their pans on a wire rack — at least 1 hour. Warm cake plus warm filling equals a sliding mess.

- Make the coconut-pecan filling: in a medium saucepan, combine the butter, Jaca, molasses (if using), egg yolks, and evaporated milk. Whisk over medium heat until the butter melts and the Jaca dissolves.

- Continue whisking gently as the mixture comes up to a low bubble — about 5 to 7 minutes. Once it bubbles, whisk constantly for another 4 to 5 minutes until the filling visibly thickens and coats the back of a spoon. Jaca holds onto water longer than brown sugar, so the filling may look loose at first — keep going, it will set as it cools.

- Remove from the heat and stir in the vanilla, toasted pecans, and shredded coconut. Transfer to a heatproof bowl and let it cool completely to room temperature, then refrigerate for 30 minutes if you want it extra-spreadable.

- Make the chocolate frosting: in a large bowl, beat the softened butter with a hand or stand mixer on medium-high for 2 minutes until pale and fluffy. Sift in the cocoa powder and powdered Jaca alternately with the heavy cream, beating on low between additions so you do not coat the kitchen in a cocoa cloud.

- Add the vanilla and pinch of salt. Beat on medium-high for another 2 to 3 minutes until silky. If the frosting is too thick, add cream 1 teaspoon at a time; if too thin, add more powdered Jaca a tablespoon at a time.

- Assemble: level the cake tops with a serrated knife if they have domed. Place the first layer on a cake stand or plate. Spread half the cooled coconut-pecan filling (about 1 1/4 cups) evenly to the edges. Top with the second cake layer, then the remaining half of the filling. Add the third cake layer on top.

- Frost the top and sides of the cake with the chocolate frosting using an offset spatula. For the classic German chocolate look, leave the sides bare and just frost the top; for full coverage, frost everything. Press toasted pecan halves and shredded coconut around the top edge as garnish.

- Refrigerate the cake for at least 45 minutes before slicing — this firms the frosting and lets the layers settle for clean cuts. Bring to cool room temperature before serving for the best texture.

- Leftover cake keeps covered in the refrigerator for up to 5 days. The flavor actually deepens on day two and three as the coconut-pecan filling soaks into the cake layers.