Boston Cream Whoopie Pies
From the light vanilla cake to the pastry cream to the chocolate ganache, these Boston cream whoopie pies have every element of a traditional boston cream pie!
Ingredients
For the whoopie pies:
- 300 g all-purpose flour
- 1 ½ teaspoon baking powder
- ½ teaspoon baking soda
- ½ teaspoon salt
- 70 g unsalted butter, room temp
- 100 g granulated sugar
- 100 g brown sugar
- 1 egg, room temp
- 1 teaspoon vanilla
- 227 g buttermilk, room temp
For the pastry cream:
- Get the ingredients in this pastry cream filling recipe.
For the chocolate ganache:
- 56 g heavy cream
- 56 g (2 oz) chocolate
Instructions
For the whoopie pies:
- Preheat the oven to 375 degrees F (190 degrees C) and line two baking sheets with parchment paper.
- On another piece of parchment paper, trace 2" circles spaced about 2" apart.
- In a medium bowl, whisk together the flour, baking powder, baking soda, and salt. Set aside.
- In a large bowl with an electric mixer, beat the butter and sugars together for 2-3 minutes.
- Mix in the egg and vanilla until fully combined.
- In two additions, alternate folding in the dry ingredients and buttermilk with a rubber spatula.
- Transfer the batter to a piping bag with a large round piping tip (I used Ateco 808).
- Place your template under a piece of parchment paper on a baking sheet and pipe perpendicular to fill each circle.
- Bake the whoopie pies for about 10 minutes or until just barely golden on the edges.
- Allow to cool completely before assembling.
For the pastry cream:
- Follow the instructions in this pastry cream filling recipe.
For the chocolate ganache:
- In a medium bowl, heat the heavy cream in the microwave for about 30 seconds.
- Stir in the chocolate until fully melted.
For assembly:
- Pair the whoopie pies up, then spread the chocolate ganache on the top ones. Allow to set for a few minutes.
- Spread the pastry cream on the bottom ones and gently sandwich with the tops.
Notes
- I recommend making the pastry cream the day before assembling so it can chill in the fridge overnight.
- Chill leftover whoopie pies in the fridge.
Nutrition Facts
Serving: 1whoopie pie | Calories: 218kcal | Carbohydrates: 34g | Protein: 3g | Fat: 8g | Saturated Fat: 5g | Polyunsaturated Fat: 0.4g | Monounsaturated Fat: 2g | Trans Fat: 0.2g | Cholesterol: 29mg | Sodium: 194mg | Potassium: 76mg | Fiber: 1g | Sugar: 17g | Vitamin A: 227IU | Vitamin C: 0.02mg | Calcium: 60mg | Iron: 1mg
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