Make-Ahead Chocolate Soufflé

recipe hero image
4
Prep 15 mins
Cook 15 mins

Ingredients

Softened butter, as needed
110 g granulated sugar, plus more for ramekins
150 g dark chocolate (70%)
300 g egg whites
2 g cream of tartar (about 1/4 tsp)
10 g xanthan-sugar blend (see below)
For the xanthan-sugar blend (make extra):
3 g xanthan gum
97 g sugar

Steps

1
Melt chocolate: Melt chocolate in a large bowl over simmering water. The bowl needs to be large enough to fold in the meringue later. Set aside.
2
Preheat oven: 375 °F (190 °C), convection off.
3
Prep ramekins: Butter four 6-ounce (180ml) ramekins with vertical brush strokes. Coat generously with sugar, tapping and rotating to cover the sides and lip.
4
Make Swiss meringue: Combine egg whites, sugar, xanthan-sugar blend, and cream of tartar in a stand mixer bowl. Set over the steaming water and whisk to 130 °F (54 °C). Transfer to the stand mixer and whip on high to soft peaks. Better to underwhip than overwhip.
5
Fold meringue into chocolate: Fold half the meringue into the chocolate, then gently fold in the rest. Fill ramekins to about 1 cm below the rim. Knock on the counter to level.
6
Refrigerate and flip: Refrigerate 5 minutes, then invert ramekins onto a sheet tray. Refrigerate for up to 48 hours.
7
Bake & serve: Flip right side up from the fridge into the preheated oven.
8
Bake approximately 20 minutes—soufflés should nearly double the ramekin height. I aim for a core temp of 203 °F (95 °C). If cracks split open on the top or sides, pull immediately. Serve right away; they begin collapsing immediately and fully deflate in about 10 minutes.