Step 1

In a large bowl, stir together the brown sugar, rice vinegar, soy sauce, fish sauce, 2 tablespoons olive oil, salt, garlic powder, ground cayenne and black pepper. Transfer 1 tablespoon of the mixture to a medium bowl and add the diced pineapple, red onion and cilantro. Toss until well mixed and set aside.

Step 2

Add the grated pineapple and its juices to the marinade in the large bowl, then add the chicken and toss to coat. Set aside to marinate at room temperature for 15 minutes (and no longer).

Step 3

Once the chicken is done marinating, heat a large nonstick skillet over medium-high and add enough olive oil to lightly coat the bottom of the pan. Add the chicken pieces, leaving any marinade behind, in a single layer so that they don’t touch and let cook until the bottoms are browned, 2 to 3 minutes. Continue cooking, stirring occasionally, until browned on all sides and no longer pink on the inside, 4 to 5 minutes more.

Step 4

Serve the chicken over rice and top with the reserved pineapple salsa.