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Sweet and Cozy Jam Cake


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  • Author: Benjamin
  • Total Time: 1 hour 15 minutes (including cooling time)
  • Yield: 12 servings 1x

Description

Looking for a dessert that’s as beautiful as it is delicious? This Easy Jam Cake combines the simplicity of a boxed spice cake mix with the rich flavors of blackberry jam and a creamy dulce de leche frosting. Perfect for casual get-togethers or special occasions, this cake is moist, flavorful, and absolutely irresistible.


Ingredients

Scale

For the Cake:

  • Cooking spray
  • 1 (15.25-ounce) box spice cake mix
  • 3 large eggs
  • 1 cup water
  • 1/2 cup canola or vegetable oil
  • 1 cup blackberry jam

For the Frosting:

    • 1/2 cup (1 stick) unsalted butter, softened
    • 1 (13.4-ounce) can dulce de leche
    • 1/2 teaspoon salt
    • 1 1/2 cups (170g) powdered sugar

Instructions

  • Preheat the Oven:
    • Preheat your oven to 350°F (175°C).
    • Spray a 9×13-inch baking pan with cooking spray to prevent sticking.
  • Prepare the Cake Batter:
    • In a large mixing bowl, combine the spice cake mix, eggs, water, and oil.
    • Beat the mixture on medium speed for 2 minutes, until the batter is smooth.
  • Add the Jam:
    • Pour the batter into the prepared baking pan and spread it evenly.
    • Use a tablespoon to add dollops of blackberry jam across the top of the batter, spacing them evenly.
    • Gently swirl the jam into the batter with a butter knife, being careful not to over-mix or let the jam sink.
  • Bake the Cake:
    • Bake the cake according to the box instructions, usually 23–28 minutes.
    • Check doneness by inserting a toothpick into the center (avoiding the jam); it should come out clean.
  • Cool the Cake:
    • Remove the cake from the oven and transfer it to a cooling rack.
    • Let it cool completely for at least 1 hour before frosting.
  • Make the Frosting:
    • In a medium bowl, beat the softened butter on medium speed until creamy, about 2 minutes.
    • Add the dulce de leche and salt, and mix until fully incorporated.
    • Gradually add the powdered sugar, mixing on low speed until combined. Increase to medium speed and beat until light and fluffy, about 2 minutes.
  • Frost the Cake:
    • Spread the frosting evenly over the cooled cake using an offset spatula.
    • For added flair, drizzle with extra blackberry jam or garnish with fresh berries.
  • Serve and Enjoy:
    • Slice the cake into squares and serve immediately. Store leftovers at room temperature for up to 1 day, or refrigerate for up to 5 days.

Notes

  • Jam Variations: Try raspberry, apricot, or strawberry jam for a new flavor twist.
  • Storage Tips: Keep the cake in an airtight container in the fridge to maintain freshness. Bring it to room temperature before serving.
  • Freezing: Wrap individual slices tightly in plastic wrap and freeze for up to 3 months.
  • Customization: Add chopped nuts, coconut flakes, or a drizzle of white chocolate for extra flair.
  • Prep Time: 15 minutes
  • Cook Time: 25 minutes
  • Category: Dessert
  • Method: Baking
  • Cuisine: American