This brittle might be the ideal marriage between things a kid loves and things an adult love. You’ve got cocoa cereal—the stuff of perfect Saturday mornings, and brittle, a sophisticated crunchy treat. For a totally over-the-top treat, serve crushed over a scoop of ice cream. If you don’t have nonstick spray for the parchment paper, pour some vegetable or canola oil on a paper towel and rub it all over the sheet. This is key to making sure the brittle doesn’t stick to the paper.