Pistachio Cupcakes with Creamy Pistachio Frosting

Decadent but surprisingly simple, these Pistachio Cupcakes with Pistachio Frosting use a boxed cake mix for a quick base and an easy, lightly sweet frosting that tastes fantastic. Perfect for potlucks and backyard BBQs.

Easy Pistachio Cupcakes with Pistachio Frosting

We love pistachio cupcakes. While I often make them from scratch, when I need to prepare a large batch for a potluck or BBQ I prefer a semi-homemade shortcut. Using a boxed white cake mix combined with pistachio pudding delivers great flavor and a reliable texture—without taking all day.

For the frosting I opted for a mostly homemade approach. The pistachio-flavored pudding gives the buttercream a lovely, natural taste, and I finished the cupcakes with marshmallows and shredded coconut because those flavors complement pistachio so well.

Pudding Frosting Without Cool Whip

If you prefer a stable frosting that won’t wilt in warm weather, this pudding-based buttercream is a great choice—no Cool Whip required. It holds up better than whipped cream and remains silky when served outdoors.

This frosting is intentionally not overly sweet, which makes it versatile for many cupcake flavors. Swap the pudding mix for different flavors to create other variations.

How to Store Cupcakes with Buttercream Frosting

Because this frosting uses heavy cream, store the finished cupcakes in the refrigerator. When you’re ready to serve, remove them about 10–15 minutes beforehand so the frosting softens and regains a smooth, silky texture.

If you must take cupcakes outside on a hot day, serve them immediately—but keep in mind that butter-rich frosting will soften and can melt in high temperatures. Bringing them from fridge to table works well for brief outdoor service in warm weather.

Refrigeration will not make the frosting gritty or overly firm if you let the cupcakes rest briefly at room temperature before serving.

These cupcakes are straightforward to make, impressively flavorful, and consistently popular wherever we bring them. The boxed cake mix yields moist cupcakes and the pistachio pudding adds a distinctive flavor that makes them taste homemade—even when they’re made quickly.

If you’d like to garnish the cupcakes, try one of these options:

Crushed pistachios
Mini marshmallows
Shredded coconut
White chocolate shavings
Sprinkles
Chocolate or candy chips

This week is BBQ Week, and these cupcakes are an easy dessert idea to bring to any outdoor gathering. They travel well, look festive, and are a crowd-pleaser.

Recipe

Easy Pistachio Cupcakes with Pistachio Frosting

Decadent yet simple—these cupcakes use a boxed cake mix plus pistachio pudding in the cake and frosting for bright, nutty flavor.

Prep Time: 25 mins

Cook Time: 15 mins

Total Time: 40 mins

Course: Dessert

Cuisine: American

Servings: 24

Calories: 286 kcal

Ingredients

For the Cake:

1 box white cake mix (plus required ingredients called for on the box: eggs, oil, water, etc.)
3.4 ounces pistachio pudding mix

For the Frosting:

3.4 ounces pistachio pudding mix
2 cups unsalted butter, room temperature
1/4 teaspoon salt
3/4 cup heavy cream
1/2 teaspoon vanilla extract
3/4 cup powdered sugar

Instructions

In a large bowl, combine the white cake mix, pistachio pudding mix, and the required ingredients listed on the cake mix box. Mix until combined.
Fill cupcake liners about 1/2 to 3/4 full with batter.
Bake according to the cake mix package directions. Remove from oven and allow cupcakes to cool completely.
For the frosting, beat the butter in a large bowl until smooth.
On low speed, add the pistachio pudding mix and salt and beat until blended.
Slowly add the heavy cream a little at a time. Once incorporated, increase the mixer speed to high and beat 3–5 minutes until light and fluffy.
Add the powdered sugar and beat on high for 3–5 minutes to fully combine and remove any grittiness. Add the vanilla extract and beat 1–2 minutes more.
Fill a piping bag or spread the frosting on the cooled cupcakes. Decorate with shredded coconut, mini marshmallows, crushed pistachios, white chocolate shavings, or sprinkles as desired.

Notes

If the frosting is too thick, add a few tablespoons of heavy cream until you reach the desired consistency.
If you prefer a sweeter frosting, add powdered sugar a tablespoon at a time until it suits your taste.
Store cupcakes in the refrigerator because of the cream in the frosting. Remove 15–20 minutes before serving so the frosting softens. For short outdoor servings, going straight from fridge to table is usually fine.

Nutrition Facts