Peanut Butter & Chocolate Mousse Pie

It’s Pi Day! A day not only to celebrate the irrational number pi – 3.14 – but also a great excuse to enjoy a slice of pie or a slice from a pizza pie! Truthfully, it’s never crossed my mind to make pizza to celebrate the day. Maybe I should do that next year. For this year though I am bringing you a pie that is probably among the top 5 pies I have ever made. If you didn’t know, I am not a big pie eater. I love dessert, but I am not partial to desserts that are overly sweet or over the top (like those crazy milk shakes that were all the rage a few years ago) and unfortunately, I find a lot of pies to be extremely sweet. But this one I am bringing you today is just the right amount of sweetness and pairs two things that always go well together… peanut butter and chocolate. It’s a Peanut Butter & Chocolate Mousse Pie.

To begin I made the crust for the pie. In my food processor I pulsed 12 graham crackers into crumbs and then added in sugar and melted butter and pulsed everything together a few more times. I then transferred the mixture to a 9-inch springform pan and pressed it into the bottom and up the sides of the pan. I used the bottom of a glass to get the crumbs spread out evenly and the sides of the glass to press them evenly along the sides. I placed the pan on a baking sheet and then baked the crust in a 350 F preheated oven for 10 minutes. I then let it cool on a wire rack while I worked on the chocolate mousse.

To make the chocolate mousse I combined semi-sweet & bittersweet chocolate chips along with vanilla extract, a pinch of salt and instant espresso coffee in a small bowl. I boiled heavy whipping cream in a small saucepan and then poured it over the chocolate chip mixture and stirred everything together to melt the chocolate chips. I continued stirring until the mixture was smooth and then let it cool to room temperature stirring it occasionally, about 10 to 15 minutes. In a medium bowl I whipped additional heavy whipping cream along with confectioners’ sugar until it was stiff.

I then gently folded the cooled melted chocolate into the heavy whipped cream. I continued folding the two together until they were well incorporated and no streaks of either the whipped cream or melted chocolate remained. I made sure to scrape the bottom of the bowl as I folded.

I then spread the chocolate mousse into the cooled graham cracker crust and refrigerated it while I made the peanut butter mousse.

To make the peanut butter mousse I beat heavy whipping cream in a medium bowl until stiff peaks formed and I set it aside. In another medium bowl I beat together cream cheese, creamy peanut butter, vanilla extract, confectioners’ sugar and milk until smooth.

Then, I folded the two together just as I did the chocolate mousse, until no streaks of the peanut butter mixture or whipped cream remained, and once again I made sure to scrape the bottom of the bowl as I folded.

I then spread the peanut butter mousse over the chocolate mousse…

And placed the pie in the refrigerator overnight so both mousses could set.

Now, you could enjoy the pie as is, but I decided to spruce it up a little. I melted semi-sweet chocolate chips and creamy peanut butter in the microwave and put each in a piping bag, snipped off the end and drizzled each on top of the pie. I then made whipped cream and piped dollops of it around the pie using a Wilton 1M tip and finally I quartered 3 Reese’s Peanut Butter Cups and placed them on top of the whipped cream. By the way, I had no clue that Reese’s Peanut Butter Cups had gotten so small. The packaging is still the same size, but I am sure the candy itself has shrunk a little since I was a kid.

I kept the pie refrigerated until about 15 minutes before slicing and stored the leftovers in the refrigerator. This pie is delicious. It’s the perfect amount of each the peanut butter mousse and the chocolate mousse. Both complement each other very well, as peanut butter and chocolate always do, and neither mousse overpowers the other.

Peanut Butter & Chocolate Mousse Pie

Servings: 12
Print

Ingredients:

For the Graham Cracker Crust:

1 1/2 cups graham cracker crumbs

2 tablespoons sugar

1 stick unsalted butter, melted

For the Chocolate Mousse:

3 ounces semi-sweet chocolate chips

3 ounces bittersweet chocolate chips

1 teaspoon vanilla extract

Pinch of salt

1/2 teaspoon instant espresso coffee*

1 1/2 cups heavy whipping cream

2 tablespoons confectioners’ sugar

For the Peanut Butter Mousse:

1/2 cup heavy whipping cream

4 oz. cream cheese (1/2 of an 8oz. block)

1/2 cup creamy peanut butter

1 teaspoon vanilla extract

1/2 cup confectioners’ sugar

1 tablespoon milk

To Decorate:

1/4 cup semi-sweet chocolate chips

3 tablespoons creamy peanut butter

1/2 cup heavy whipping cream

2 tablespoons confectioners’ sugar

*It’s not necessary to use the instant espresso. I had it on hand and coffee enhances the flavor of chocolate.

Directions:

Preheat the oven to 325 F.

For the graham cracker crust: Combine the graham cracker crumbs, sugar and melted butter in a medium bowl and then press into the bottom and up the sides of a 9-inch springform pan. Place on a cookie sheet and bake in the preheated oven for 10 minutes. Let cool on a wire rack until ready to use.

For the chocolate mousse: Combine the semi-sweet and bittersweet chocolate chips, vanilla extract, salt and instant espresso in a heatproof bowl. Stir together and set aside. In a small saucepan boil 1/2 cup of the heavy whipping cream. Pour over the chocolate chips and stir until the chocolate chips have melted and the mixture is smooth. Allow to cool to room temperature, stirring occasionally. Beat remaining 1 cup of heavy whipping cream along with the confectioners’ sugar until stiff and then fold into chocolate. Spread the chocolate mousse into the bottom of the graham cracker crust and refrigerate while making the peanut butter mousse.

For the peanut butter mousse: In a medium bowl beat the heavy cream until stiff peaks form. Set aside. In another medium bowl beat the cream cheese, peanut butter and vanilla extract until smooth. Add the confectioners’ sugar and then the milk, beating until the mixture is smooth and everything is combined. Fold in the whipped cream. Spread the peanut butter mousse over the chilled chocolate mousse in the crust.

Refrigerate the pie at least 6 hours or overnight before decorating or serving.

To decorate the pie: In a microwave safe bowl melt the semi-sweet chocolate chips in the microwave in 20-second intervals, stirring between each interval. Once melted transfer to a piping bag and snip the end (or a resealable bag and snip off a corner) and drizzle over the pie.

In another microwave safe bowl melt the peanut butter in the microwave 20-second intervals, stirring between each, until the peanut butter is a pourable consistency. Transfer to a piping bag and snip the end (or a resealable bag and snip off a corner) and drizzle over the pie.

In a medium bowl beat the heavy whipping cream and confectioners’ sugar together until it’s stiff. Transfer to a piping bag fitted with a large star or round piping tip and pipe dollops of whipped cream around the pie.

Slice and enjoy!

Store leftovers in the refrigerator.

Chocolate Mousse modified from Epicurious

Peanut Butter Mousse modified from Wishes and Dishes