Slow Cooker Pork Shoulder With Zesty Basil Sauce

Name: Slow Cooker Pork Shoulder With Zesty Basil Sauce
Ingredients: 8 garlic cloves, finely chopped; 1/4 cup olive oil; 3 tablespoons whole grain mustard; 3 tablespoons light brown sugar; 2 tablespoons kosher salt; 2 teaspoons freshly ground black pepper; 2 teaspoons oregano leaves, finely chopped; 1 1/2 teaspoons smoked paprika; 1 skinless, boneless pork shoulder roast, tied (Boston butt; about 6 pounds); 1 large shallot, finely chopped; 2 cups basil leaves, finely chopped; 1 1/4 cups extra virgin olive oil; 1/4 cup oregano leaves, finely chopped; 1 teaspoon crushed red pepper flakes; 1 teaspoon kosher salt; 1/2 cup fresh lemon juice; A (4-quart) slow cooker