Step 1

We like to serve these tacos with an assertive hot sauce such as Tabasco.

Step 2

Combine cabbage, crema, cilantro, lime juice, salt, and pepper in bowl; set aside.

Step 3

Adjust oven racks to upper-middle and lower-middle positions and heat broiler. Line rimmed baking sheet with foil. Sprinkle salmon all over with blackening seasoning, then place skin side down on prepared sheet. Broil salmon on upper rack until well browned, about 6 minutes.

Step 4

Transfer sheet to lower rack and continue to cook until salmon registers 135 degrees, about 8 minutes longer. Using fork, gently flake salmon apart on sheet; discard skin. Divide salmon evenly among tortillas. Top with reserved slaw, avocado, and grapefruit segments. Serve with extra crema.