Whether you've made it at home or indulged at a restaurant, a classic molten lava cake will never not be delicious. But why does chocolate always have to be at the center? Don't worry, we provided the classic recipe below, complete with a dark chocolate ganache that melts into gooey deliciousness in the oven and spills onto your plate when you cut into the cake. But we also give you options for salted caramel and peanut butter fillings, because we couldn't resist a salty-sweet combo. If you're making these for friends, let them choose their own molten center. How fun is that?