
This Boston Cream Poke Cake transforms the beloved pie into an irresistible, easy-to-make cake. The combination of moist yellow cake, creamy vanilla pudding, and rich chocolate frosting creates a dessert that's perfect for any occasion without the fuss of making a traditional Boston cream pie from scratch.
I first made this cake for my son's birthday when I was short on time but wanted something special. The look on his face when he took that first bite convinced me this shortcut version was actually better than my traditional recipe.
Ingredients
- Yellow cake mix: Plus required ingredients provides the perfect base with minimal effort
- Instant vanilla pudding: Creates that classic Boston cream custard layer
- Milk: Activates the pudding and ensures proper consistency
- Chocolate frosting: Delivers that signature glossy top layer that makes Boston cream desserts so iconic
How To Make Boston Cream Poke Cake
- Bake the cake:
- Prepare your yellow cake mix according to the package directions using the eggs, oil and water as specified. Pour into a well-greased 9x13 inch baking pan and bake as directed until golden brown. The edges should pull slightly away from the sides when fully baked.
- Create the holes:
- While the cake is still warm from the oven, use the handle of a wooden spoon to poke holes all over the surface about 1 inch apart. Press all the way to the bottom of the pan. Make these holes generously sized as they need to accommodate the pudding. The warm cake is more pliable and less likely to crumble when poked.
- Prepare the pudding:
- In a large mixing bowl, combine both boxes of instant vanilla pudding with 4 cups of cold milk. Whisk vigorously for a full minute until the mixture begins to thicken but remains pourable. Work quickly as the pudding will continue to set up.
- Fill the cake:
- Pour the prepared pudding carefully over the entire cake, directing the stream into the holes as much as possible. Use the back of a spoon to gently press the pudding down into the holes. Ensure every hole gets filled with pudding for that perfect cream-filled bite throughout the cake.
- Chill thoroughly:
- Refrigerate the pudding-filled cake for at least 2 hours to allow the pudding to fully set and the cake to cool completely. This step is crucial for clean slices later.
- Prepare the frosting:
- Once the cake has chilled, take your tub of chocolate frosting and remove the lid and foil. Microwave for just 10 to 15 seconds to make it pourable but not hot. Stir until smooth and slightly loosened.
- Add the chocolate layer:
- Pour the slightly warmed chocolate frosting over the chilled cake. Start from the center and use an offset spatula to gently spread it toward the edges in a smooth, even layer. The slightly warm frosting will create that glossy finish characteristic of Boston cream pie.
- Final chill:
- Allow the cake to rest at room temperature for about 5 minutes so the frosting can begin to set, then refrigerate for at least 1 hour before serving. This ensures clean slices and the perfect texture contrast between layers.

This dessert reminds me of Sunday dinners at my grandmother's house. She taught me that vanilla pudding is the secret ingredient that makes or breaks this recipe. She always used French vanilla pudding for a richer, more custard-like flavor, and I've never looked back.
Make-Ahead and Storage
This cake is actually better when made a day ahead, making it perfect for busy schedules. The pudding has time to fully integrate with the cake, creating that classic Boston cream texture we all love. Store in the refrigerator, covered with plastic wrap or in an airtight container, for up to 4 days. The cake will remain moist thanks to the pudding infusion.
Smart Substitutions
If you want to experiment with flavors, try chocolate pudding instead of vanilla for a chocolate lover's version. For a more homemade approach, use a scratch yellow cake recipe instead of boxed mix. You can also substitute homemade ganache for the chocolate frosting by heating 1 cup heavy cream and pouring over 8 ounces chopped chocolate, then stirring until smooth.

Serving Suggestions
For an extra special presentation, add fresh berries around the edge of the cake before serving. A dollop of freshly whipped cream on each slice brings additional elegance. For individual servings, cut into squares and plate with a dusting of powdered sugar and a mint leaf. This cake pairs wonderfully with coffee or milk for a perfect ending to any meal.
Frequently Asked Questions
- → How do I prevent the cake from sticking to the pan?
Always grease your pan thoroughly with butter or non-stick spray, and dust it lightly with a bit of flour before pouring in the batter.
- → Can I use homemade pudding instead of instant?
Yes, you can use homemade pudding, but ensure it is thick and chilled before pouring it into the cake to maintain the texture.
- → What chocolate frosting works best?
A rich store-bought frosting, like fudge or dark chocolate, works well, or you can use a homemade ganache if you prefer.
- → Can I make this cake a day in advance?
Yes, this cake is even better when allowed to chill overnight, as the flavors deepen and the pudding sets perfectly.
- → How do I ensure the frosting spreads smoothly?
Microwave the frosting for 10-15 seconds to soften it. Stir well, then spread it evenly over the chilled cake with a spatula.