(Soon to Be) Fried Green Tomatoes

NIKKOR AF 20mm f/2.8 D; 1/60, f/3.5, ISO 400

You can’t really sharpen a blurry image, since there are no edges to work from. But what you can do is apply “Hiraloam” sharpening (High radius lo amount) to enhance the definition and help it along. Unsharp Mask at a 10 pixel radius, but at a low amount will do the trick. In this case, it was applied through a mask to affect only the top an bottom of the image, not the center which is already sharp and would look nasty sharpened further.