I start by washing every piece of fruit under cool water and patting it completely dry. Then I peel the oranges, slice the apple thinly, and halve the bananas crosswise. Tossing the apple and banana pieces in lemon juice right away keeps them looking fresh on the platter.
Next, I heat the white chocolate chips in a microwave-safe bowl in 20-second bursts, stirring between each one. Once it is smooth and glossy, I transfer it into a zip-top bag and snip a tiny corner off to use as a piping tool.
I pipe small white chocolate dots onto the grapes to form the base of each eyeball, then press a mini dark chocolate chip into the center of each dot. I let these sit for a few minutes so the chocolate can firm up completely.
Using the black edible marker, I draw simple triangle eyes and a jagged smile straight onto the orange peels. This step takes seconds per orange but makes the biggest visual impact on the whole platter.
I press two mini chocolate chips into the rounded end of each banana half to create little ghost faces. The natural curve of the banana does most of the spooky work for me here.
Finally, I arrange the apple slices as the base, drizzle them with caramel sauce, and sprinkle on the chopped peanuts. Then I place my ghost bananas, eyeball grapes, and jack-o-lantern oranges around the tray and chill it for ten minutes before serving.