The Fuerte Avocado is your grandmother's avocado. In fact, it wasn't so long ago that the Hass held little to no commercial appeal because it turned black when ripe. In the 1950s, before the Hass reigned supreme, the Fuerte accounted for nearly two-thirds of all California avocado production, so people were more used to this thinner- and green-skinned avocado. And even though the Hass is pretty much the only domestic avocado you find anymore outside of California and Florida, the Fuerte has a thriving fan club in the Golden State. Once you spread some creamy Fuerte goodness over a thick slab of hearty toast, you'll understand why.