Grilling Corn with George Foreman George Foreman Grill to grill some ears of sweet corn. Step 1) Remove from husk. De-silk. Step 2) Brush with olive oil. Sprinkle with Kosher salt and cracked black pepper. Step 3) Set grill to 375 °F. Cover and grill for 5 minutes, horizontally (that is, at 90 ° to the griddle ridges) Step 4) Rotate the ears, and turn vertically into the grooves. Grill another 3 minutes.