Preheat oven to 350F. Cut your your butter in pieces and chop your chocolate — this helps with melting. Place butter and chocolate in a double boiler and melt the mixture, stirring frequently. Once melted let cool. Pro tip: if you don’t have a double boiler, you can place a heat-safe bowl over a simmering pot of water. Alternatively, you can place the diced butter and chopped chocolate in a large microwave safe bowl, and microwave in 20-second intervals, stirring each time, until smooth and fully melted.
In a large bowl, mix granulated sugar, brown sugar, cocoa powder, salt and espresso powder.
Then, add the vanilla and 3 eggs and 1 egg yolk. Beat on medium high (or vigorously whisk) for about 1 minute. Then, add the heavy cream and whisk until well combined.
Next, add the slightly cooled, melted chocolate mixture. Whisk until combined.
Once combined, pour filling into the pie crust. The crust doesn't have to be completely cooled.
Bake for about 50 minutes or until the filling is puffed and the edges of the pie is set. The center of the pie will slightly wobble when gently shaken.
Remove the pie from the oven and let completely cool to set, which can take 2-4 hours. Your pie will sink and the filling may crack, that's expected. Pro tip: if you notice that your pie isn't set, you can stick it in the refrigerator until set.
Once cooled, enjoy and feel free to add a comment on my blog! Also, be sure to share your photo on instagram and tag @butterloveandsalt! We would love to see how your pie comes out!