Hot Chocolate Cake

Super decadent dessert without the hard work!

Hot Chocolate Cake:
8 T. (1 stick) unsalted butter, plus extra for coating
3 T. flour, plus extra for dusting
1/2 C. sugar, plus extra for dusting
10 oz semisweet chocolate, coarsely chopped
4 large eggs
1 large egg yolk
1 t. vanilla
1/4 t. salt
marshmallows

Preheat oven to 375. Generously butter, flour, and sugar pie plate or 10" springform pan. Place butter and chocolate in medium heatproof bowl over a pan of simmering water (or a double boiler) and melt, stirring occasionally until smooth. Remove from heat and let cool 5 minutes. While chocolate is cooling, beat eggs, yolk, vanilla, salt and sugar at highest mixer speed until volume doubles and the mixture becomes foamy, about 5 minutes. Stir the 3T flour into the chocolate, then gradually add to egg mixture, beating on low until fully mixed. Pour into pan and bake for 22-25 minutes, or 17-20 minutes for a more gooey center. Remove from oven, sprinkle with marshmallows (don't cover whole thing; they'll expand), then bake for another 2-4 minutes until the marshmallows start to turn brown. Let cool for a few minutes and enjoy!