Zucchini Blossom and Fontina Panini

Name: Zucchini Blossom and Fontina Panini
Yield: Makes 4 Servings
Ingredients: 20 zucchini blossoms, stems removed (about 3 ounces); 3 tablespoons extra-virgin olive oil plus additional for brushing; 1/4 teaspoon fleur de sel or coarse kosher salt; 1/8 teaspoon freshly ground white pepper; 8 5x3-inch slices rustic country-style bread; 2 cups grated Fontina cheese (about 8 ounces)