01 -
Mix mayonnaise, ketchup, and garlic powder. Refrigerate until serving.
02 -
Peel plantains and cut into 1 1/2-inch chunks. Soak in salted water for 20 minutes.
03 -
Set air fryer to 350°F (175°C).
04 -
Dry plantains, toss with 1 tablespoon oil. Air fry 3-6 minutes per side until soft.
05 -
Flatten each piece to 1/4-inch thick using a tostonera or mug.
06 -
Increase air fryer to 400°F (200°C). Brush tostones with oil, fry 3 minutes, flip, oil again, fry 4 minutes.
07 -
Sprinkle tostones with coarse salt. Serve hot with mayo-ketchup dip.