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Close-up of a rich chocolate poke cake slice with whipped topping and crushed Butterfinger pieces, served on a white plate with a fork.

Butterfinger cake (13x9 cake from scratch)

Course: Dessert
Cuisine: American
Keyword: Butterfinger cake (13x9 cake from scratch)
Difficulty Level: Beginner
Prep Time: 30 minutes
Cook Time: 30 minutes
Cooling time: 4 hours
Total Time: 5 hours
Servings: 18 slices
Calories: 263kcal
Author: Kara @I Scream for Buttercream
This scratch Butterfinger cake has a rich chocolate cake layer with caramel soaked into the cake all topped with a decadent cream cheese frosting with whipped cream and crushed Butterfingers.
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Ingredients

For the cake

  • 2 cups all-purpose flour (Measured correctly: Spooned into the measuring cup and leveled off - don't scoop and pack the flour into the cup, that will add too much flour.)
  • ¾ cup unsweetened natural cocoa powder (not Dutch cocoa powder)
  • 2 teaspoons baking powder
  • 1 teaspoon baking soda
  • 1 teaspoon salt
  • 2 cups granulated sugar
  • ½ cup vegetable oil
  • 1 teaspoon vanilla extract
  • 1 cup buttermilk
  • 2 large eggs
  • 1 cup hot coffee or very hot water
  • If you do not want to make the cake from scratch, you can instead prepare 1 box of chocolate cake mix according to the instructions on the back of the box

For the glaze (This glaze is very sweet. If that’s not your thing, consider only using ½ the glaze)

  • 1 (12 ounce) jar caramel topping
  • 1 (14 ounce) can sweetened condensed milk

For the topping

  • 1 (8 ounce) container Cool Whip
  • 1 (8 ounce) block cream cheese, near room temperature
  • ½ cup unsalted butter, near room temperature
  • 1 cup confectioner’s sugar
  • 2 large Butterfinger bars crushed
  • 1 tablespooon milk

Instructions

For the cake

  • Preheat the oven to 350 degrees F.
  • Spray or grease a 13x9 inch pan. (I use a glass pan.)
  • In a large mixing bowl, add the flour, cocoa powder, baking powder, baking soda, salt and granulated sugar. Whisk well and set aside.
  • In a medium-sized mixing bowl, add the oil, vanilla extract, buttermilk and eggs. (Do not add the hot coffee or water yet.) Whisk well and add to the dry ingredients.
  • Mix with an electric mixer on medium only until just combined (about 20 seconds). Mixing scratch cakes for too long or at too high of speed will cause the cake to turn out dense, rubbery or will fall.
  • Add the hot coffee or water and mix on medium until well incorporated (about 15-20 seconds).
  • Scrape down the sides and bottom of the bowl and mix again on medium only for about 10 seconds.
  • Pour the batter into the pan and bake at 350 degrees F for approximately 25-20 minutes. Because ovens vary, just know you may end up needing to bake this a little longer, just watch it closer. The edges of the cake will start to pull away from the pan a bit, the top will be slightly firm when lightly touched and a toothpick inserted into the center of the cake layer will come out with a few moist crumbs on it or clean, but no raw batter.
  • While the cake is baking, make the glaze.

For the glaze

  • IMPORTANT NOTE: This glaze is very sweet and makes the cake very rich. If you do not like very sweet cakes, you may consider only using half the glaze.
  • While the cake is baking, mix together the sweetened condensed milk and the caramel sauce, then set aside.
  • Immediately after removing the cake from the oven, poke holes in the top of the cake with a skewer, a slim dowel or the handle of a wooden spoon. Make sure to only poke the holes about an inch deep. Try not to go all the way down to the bottom of the pan.
  • Pour the milk and caramel mixture over the hot cake and allow it to cool completely on a cooling rack.
  • Once cooled almost to room temperature, cover it and set it inside the fridge to chill completely or at least a few hours.

For the topping

  • While the cake is being chilled, add the room temperature cream cheese and butter to a large mixing bowl and mix with an electric mixer on medium-high until smooth.
  • Add the confectioner’s sugar and mix on medium-high speed until well combined. You might need to add in a tablespoon of milk if it's too thick.
  • Add the Cool Whip to the mixture and mix on medium-high for about a minute until well combined and fluffy.
  • After the cake has chilled completely, spread the topping over the cake.
  • Sprinkle crushed Butterfinger candy bars on top of the topping.
  • Store cake, covered well, in the fridge. Serve chilled.

Notes

How to store: This cake should be stored in an airtight container or covered well in the refrigerator and can last up to 5 days.
How to serve: This cake is generally served cold, however you can set it out about 20 minutes before serving to let it soften as most cakes will firm up quite a bit when chilled.
For other questions: Make sure to check out the TIPS & FAQs section in this post, which should answer other questions you may have about ingredients, substitutions, other pan sizes, etc.
Nutritional values are an estimate.
*This recipe card may contain affiliate links. As an Amazon Associate, I earn from qualifying purchases.

Nutrition

Calories: 263kcal | Carbohydrates: 47g | Protein: 4g | Fat: 8g | Saturated Fat: 5g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Trans Fat: 0.2g | Cholesterol: 33mg | Sodium: 230mg | Potassium: 163mg | Fiber: 2g | Sugar: 33g | Vitamin A: 207IU | Vitamin C: 0.002mg | Calcium: 49mg | Iron: 1mg