As written, the Bi-Rite gals add peanut brittle and milk chocolate chunks to this ice cream base. That has to be stellar — but there’s something to be said about the simple chocolate crackle strewn throughout; certainly add any mix-ins that you think sound delicious. Crushed cookies or toasted almonds would be wonderful. I tweaked the amount of malted milk powder here, too, feeling ultimately that 1/2 cup was a little heavy-handed.
Slightly adapted from: Sweet Cream and Sugar Cones
In a medium heat-proof bowl, whisk the yolks just to break them up, then whisk in the malted milk powder. Set aside.
In a heavy non-reactive pan saucepan, stir together the cream, milk, sugar, and salt and put the pan over medium heat. When the mixture approaches a bare simmer, reduce the heat to low. Carefully scoop out about 1/2 cup of the hot cream mixture and, whisking the eggs constantly, add the cream to the bowl with the egg yolks. Repeat, adding another 1/2 cup of the hot cream to the bowl with the yolks. Using a heatproof rubber spatula, stir the cream in the saucepan as you slowly pour the egg-and-cream mixture from the bowl into the pan.
Cook the mixture carefully over medium heat until it’s thickened and coats the back of a spatula. Strain the base through a fine-mesh strainer into a clean container. Set the container in an ice-water bath and stir occasionally to release the heat. Wait until it’s cool. Remove the container from the ice-water-bath, cover with plastic wrap, and refrigerate the base for at least 2 hours- overnight.
Once the base is chilled, remove from the refrigerator and add the vanilla. Give it a quick stir to combine. Free in your ice cream machine according to the manufacturer’s instructions.
Meanwhile, make the magic shell, or chocolate crackle: In a small saucepan, heat the coconut oil on medium-low heat until it’s just melted and in liquid form. Add the chocolate pieces and stir until they’ve melted into the oil. Remove from heat. Pour in a small bowl until you’re ready to add it to your ice cream base. Once ice cream is finished churning, slowly pour in the chocolate crackle; although it’s in viscous liquid form, it will freeze up into little solid bits when it hits the cold ice cream.
* Recipe note: When I first started making chocolate crackle and when I initially posted this recipe, I used much more coconut oil. Since then, I’ve learned you really only need a few tablespoons and that the chocolate actually firms up on its own really well, too. So since the original post, I’ve decreased the amount of coconut oil called for in the chocolate crackle.