I think the picture its something like SacherTorte, but here is your recipe!
Flourless chocolate tort!
https://www.wellplated.com/flourless-chocolate-torte/
This is more my speed, I use melted butter, I don’t cook with oil. I add walnuts.
Gooey Chocolate Pudding Cake
https://www.foodnetwork.com/recipes/anne-thornton/gooey-chocolate-pudding-cake-recipe-1923906
Nother one
OLD-FASHIONED CHOCOLATE PUDDING CAKE
https://www.food.com/recipe/old-fashioned-chocolate-pudding-cake-373967