Combine tomatillos, half the scallions, parsley, lime juice, and half the salt in a small bowl. Stir in olive oil and add Tabasco sauce to taste. Set aside.
Fill a deep skillet or Dutch oven with corn or canola oil to a depth of about 3 inches and warm over medium-high heat until temperature reaches about 350° or oil begins to crackle.
Meanwhile, mix flour, red pepper flakes, an