A dedicated panini press is arguably the best tool for the job. These countertop electric devices are specifically designed to grill panini evenly and at just the right temperature. Most feature an adjustable top plate to accommodate all sandwiches, from elegantly thin to jaw-achingly thick. Both panini presses and electric grills often feature ridges to create grill marks, and come in nonstick materials for easy release. An electric grill is slightly more all-purpose, but similar in appearance and use. Intended for searing meats, it can easily accommodate panini as well. Check that you are using the correct temperature settings for sandwiches, and turn halfway through cooking so that the panino is evenly pressed.