Pork Chops with Snap Pea Slaw

Name: Pork Chops with Snap Pea Slaw
Ingredients: 6 large garlic cloves, smashed; 1 1/2 cups plus 1 tablespoon buttermilk, divided; 2 tablespoons plus 2 1/4 teaspoons kosher salt, divided; 4 bone-in (1-inch-thick) pork rib chops (about 10 ounces each); 1 1/2 teaspoons coriander seeds; 1 1/2 teaspoons fennel seeds; 1 teaspoon black peppercorns; 5 tablespoons olive oil, divided; 2 tablespoons Champagne vinegar; 2 teaspoons honey; 2 teaspoons stone-ground mustard; 4 ounces fresh sugar snap peas, trimmed and thinly sliced on an angle (about 1 1/2 cups); 1/2 cup thinly sliced radishes (about 2 radishes); 1 small fennel bulb, halved and shaved crosswise (about 1 cup), fronds reserved and torn, divided