Make the mochi skin . Stir together flour, 1 1/2 cups water, sugar, and vinegar in a large microwavable bowl. Cover bowl loosely with plastic wrap.

I love a good lava cake. If I go to a restaurant and see lava cake on the menu, I’m getting it—no questions asked. There’s something about that warm, gooey chocolate center surrounded by ...

Case in point: Chocolate lava cake. Mention this ubiquitous dessert, whose heyday was the ’80s and ’90s but is still going strong, and plenty of people will roll their eyes.

You don’t need fancy ingredients to make a decadent homemade lava cake. This method uses a store-bought cake mix as the base and a simple technique to create that ooey-gooey chocolate center ...