Okay, now don’t freak out, but there is mayonnaise in this cake. I know: crazy. But it takes the place of the oil in the recipe, as well as the eggs (though, yes, I do throw in one, for good measure). And the texture is so perfect, as well as the flavor, that you need to put any mayo-phobias behind you and get baking. The marshmallow frosting here is epic, but if you’re just not feeling like pulling out your stand mixer for it, I totally understand and suggest you glaze this cutie with Cream Cheese Glaze instead.
Financiers are a French petit-four cake, traditionally made with brown butter and almond flour. Adding chocolate to the mix makes for a next-level brownie that we can’t get enough of. We wanted intense chocolate flavor so we ditched the bittersweet chocolate and went up on the unsweetened.