Ingredients

• 1 head garlic
• 1/2 cup (1 stick) unsalted butter
• 1 cup grated Parmesan
• 2 teaspoons chopped oregano
• 1 teaspoon grated lemon zest
• 1/2 teaspoon crushed red pepper flakes
• 1 baguette sliced in half lengthwise, then crosswise

Instructions

1. Cook cloves from 1 head garlic in 1/2 cup (1 stick) unsalted butter in a small covered saucepan over medium-low heat until golden brown and very soft, 15–20 minutes. Transfer to a medium bowl; let cool.
2. Add 1 cup grated Parmesan, 2 teaspoons chopped oregano, 1 teaspoon grated lemon zest, and 1/2 teaspoon crushed red pepper flakes to garlic and mash to a paste; season with salt.
3. Heat broiler. Slice a baguette in half lengthwise, then crosswise. Broil, cut side down, on a foil-lined baking sheet until golden brown, about 2 minutes (watch carefully). Let cool slightly, then spread cut side with garlic paste. Broil until cheese is golden and bubbling, about 2 minutes. Slice.