In a high sides saute pan, heat enough coconut oil to cover the bottom of the pan about 1/4 cup . Heat the oil over medium-high heat until it shimmers and the plantain sizzle when it touches the oil.
Once the oil is hot, carefully add the plantain slices to the pan, ensuring not to overcrowd them, frying in batches. Fry the plantain slices for about 2-3 minutes on each side, or until they are lightly golden and slightly softened.
Remove the fried plantain slices from the oil using a slotted spoon and transfer them to a paper towel-lined plate to drain excess oil.
Using a the bottom of a glass to flatten each fried plantain slice to about half of its original thickness.
Once all the plantains are flattened, return them to the hot oil in batches. Fry the flattened plantains for an additional 2-3 minutes on each side, or until they are crispy and golden brown. Remove the tostones from the oil and place them on a paper towel-lined plate to drain excess oil.
Immediately season the hot tostones with flakey salt and Seat alone or serve with your favorite dip! I like them with guacamole. Enjoy!