Combine water, garlic, and salt in medium glass bowl and set aside.
In a 12-inch saute pan, heat oil to 325°F. Peel plantains and slice crosswise into 1-inch pieces. Carefully add the plantains to the oilThe oil should come halfway up the side of the plantain. and fry until golden yellow in color, about 1 to 1 1/2 minutes per side. With a spider or slotted spoon, remove the plantains from the pan and place them on a parchment paper-lined half sheet pan, standing them on their ends.
With the back of a wide, wooden spatula, press each piece of plantain down to half its original size. Then place the plantains in the water mixture and let soak for 1 minute. Remove and pat dry with a tea towel to remove excess water.
Bring the oil back up to 325°F and return the plantains to the pan and cook until golden brown, 2 to 4 minutes per side. Remove to a dish lined with paper towels, and sprinkle with salt, if desired. Serve immediately.