Place oil in a small pan on about medium heat.
While that's heating place the brown sugar, sugar, and flour in a small plastic bag and shake it to mix it up.
Slice your apple into small wedges. Place one slice of apple at a time in the plastic bag and shake until the apple is coated.
Turn the stove to low heat and place the coated apple in the pan and evenly fry both sides for about 20 seconds per side. Easy as that!