Ingredients
1 cup (2 sticks) unsalted butter, room temperature
1/2 cup powdered sugar
1 teaspoon freshly ground black pepper
3/4 teaspoons kosher salt
2 cups all-purpose flour plus more
1 cup finely grated Parmesan (about 2 ounces)
1 tablespoon fennel seeds
1 teaspoon Maldon sea salt or other coarse salt
2 tablespoons extra-virgin olive oil
