Easy Boston Cream Poke Cake (Box Mix Recipe)

Boston cream poke cake gives you all the flavors of the classic bakery dessert without any of the fuss.

I have always loved Boston cream pie, but let’s be honest, nobody has time to make that from scratch on a busy weeknight. This easy version starts with a simple yellow box mix, a creamy vanilla pudding soak, and a rich chocolate ganache drizzled right on top.

The whole family will love it, and nobody will ever guess how simple it was to make.

A slice of Boston cream poke cake on a white scalloped plate with a silver fork, showing a golden yellow cake topped with thick glossy chocolate ganache, with a glass of milk, a plaid napkin, and a warm kitchen background with wooden cabinets and green plants on a dark wood table.

It is the kind of dessert that looks like it came straight from a bakery, but it starts from a box mix and comes together in no time.

I know your family will ask for this one again and again, whether you are making it for a birthday, Christmas dinner, or just a Tuesday night when everyone needs something a little special.

Why You’ll Love This Easy Boston Cream Poke Cake

Starts with a yellow box mix, so it is simple to prepare with ingredients you already have
The creamy vanilla pudding soak makes every single bite incredibly moist
The chocolate ganache on top looks impressive, but takes just minutes to make
Perfect for birthdays, Christmas gatherings, potlucks, and holiday dinners
Make it ahead of time, and it tastes even better the next day

Ingredients You’ll Need

For the cake:

1 box yellow cake mix, plus ingredients called for on the box (eggs, oil, and water)

For the pudding filling:

2 boxes (3.4 oz each) vanilla instant pudding mix (can use one box and 2 cups of milk if you want less filling)
4 cups cold milk
1 teaspoon vanilla extract

For the topping:

1 tub of pre-made fudge frosting

Ingredient Notes And Substitutions

Yellow cake mix: Any brand works beautifully here. Duncan Hines and Betty Crocker are both great options.
Vanilla pudding: Make sure you are using instant pudding, not cook-and-serve. We do not want it to get too thick.
Milk: for the pudding
Vanilla: To add flavor to the pudding.

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Equipment Needed

9×13 inch baking pan
Large mixing bowl
Stand Mixer
Whisk
Wooden spoon or dowel for poking holes
Small microwave-safe bowl for the frosting

A close-up of a Boston cream poke cake slice on a white scalloped plate with a fork mid-bite, showing the fluffy golden yellow cake and thick glossy chocolate ganache, with a glass of milk and a plaid napkin on a dark wood table.

How To Make Boston Cream Poke Cake

Bake the cake. Prepare and bake the yellow cake mix in a greased 9×13 pan according to package directions. Let the cake cool for about 10 minutes. Pro tip: You want the cake to still be slightly warm when you add the filling so it soaks in beautifully.
Poke the holes. Use the handle of a wooden spoon to poke holes all over the cake, about 1 inch apart. Go all the way down to the bottom of the pan.
Make the pudding filling. Whisk together both boxes of instant vanilla pudding mix with the cold milk and the vanilla until smooth. Pour the mixture over the cake and use a spatula to spread it evenly, pressing it down into the holes. Pro tip: Work quickly before the pudding starts to set so it fills every hole, or add extra milk if too thick.
Refrigerate. Cool the cake completely, and refrigerate the cake for about 1 hour before frosting.
Make the frosting. Remove the frosting from its container and heat in the microwave for 10 seconds at a time until you are able to pour it onto the top of the pudding.
Top the cake. Spread the chocolate ganache evenly over the chilled cake. Drizzle the chocolate ganache over the top in a zigzag pattern or pour it over the whole top for full coverage.
Chill and serve. Refrigerate for at least 30 more minutes before slicing and serving so everything sets up perfectly.

Tips And Tricks

Make it ahead: This cake is even better the next day after everything has had time to soak together overnight.
Clean slices: Run your knife under warm water and wipe it clean between cuts for picture-perfect slices.
Storage: Keep leftovers covered in the refrigerator for up to 4 days.
Frosting: You can use a jar of store-bought chocolate fudge sauce warmed up instead of the pre-made frosting.

Variations

Chocolate cake version: Swap the yellow box mix for a chocolate box mix for an extra rich double chocolate version.
Caramel drizzle: Add a drizzle of caramel sauce on top of the whipped cream along with the chocolate ganache for a turtle-inspired version.
Mini version: Make this in a 9×9 pan for a smaller batch, perfect for a family of four.

More Poke Cakes Your Family Will Love

A glass 9x13 baking pan of Boston cream poke cake with one slice removed, showing the creamy vanilla pudding filling inside the golden yellow cake topped with thick glossy chocolate ganache, with a silver spatula and a glass of milk on a linen napkin in the background.

Frequently Asked Questions

Q: Can I make this cake the night before?

A: Absolutely, and I actually recommend it. The pudding filling soaks into the cake overnight and makes every bite even more moist and delicious.

Q: How do I store leftover Boston cream poke cake?

A: Cover the pan tightly with plastic wrap or foil and store in the refrigerator for up to 4 days. The ganache stays glossy and the cake gets better every day.

Q: What size pan should I use?

A: A standard 9×13 inch baking pan is perfect for this recipe and feeds about 12 to 15 people.