Mix the dry ingredients together and place in a container large enough to fi1 1 filet of ahi. Press each side of the ahi filet in the mixture. Repeat until all 3 filets are coated. Heat a large skillet with oil over medium-high heat. When the oil starts to shimmer add the ahi filets. Sear each side of the ahi until browned. Remove from the pan and allow to rest for 2-5 minutes. Slice into 1/4-inch slices.