1/4 cup salted capers, soaked for 30 minutes, drained, coarsely chopped |
1/2 cup chopped fresh italian flat leaf parsley |
1/3 cup chopped scallions |
1/2 cup chopped fresh mint leaves |
1/2 cup fresh lemon juice |
2 teaspoons grated lemon peel |
1 cup olive oil, preferably extra-virgin |
2 teaspoons dried crushed red pepper flakes |
3 1/2 teaspoons coarse salt |
1 1/2 teaspoons freshly ground black pepper |
1 (4 1/2 to 5-pound) butterflied boned lamb shoulder |
1 tablespoon minced garlic |
nonstick cooking spray |