Preheat the oven 425 F
Coat a large baking sheet with cooking spray
Slice off the ends of each plantain then make two slits on opposite sides of each plantain that are skin deep and go end to end
Microwave both plantains together until they turn black and become soft in the middle (about 6-7 minutes)
Remove the plantains from the microwave, peel them then cut them into 3/4 inch slices (each plantain should make about 12 slices)
While the plantain slices are still hot, smash them into flat discs using a large knife (or a tostonera, the bottom of a jar or anything flat really)
Place the smashed plantain slices on to the prepared baking sheet from step 2 and spray them generously with cooking spray. Season with sea salt and freshly ground black pepper
Bake until golden brown, about 18-20 minutes, flipping them over half way through baking
Remove baked plantains from the oven and enjoy (while hot) with ginger cilantro crema (see below)