*I really love using HOT chili sesame oil for this, but it's hard to find in the grocery store. You can buy it here on [Amazon | http://www.amazon.com/gp/product/B00KY3OFCW/ref=as_li_qf_sp_asin_il_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B00KY3OFCW&linkCode=as2&tag=halbakhar-20&linkId=C3BXDZKKX2T66JT3] (I just bought more!) OR you can also add a dash of sriracha or crushed red chili pepper flakes to spice this up! **I you prefer cooked/sear tuna: To sear the tuna, toss it with half of the dressing, save the remaining dressing for serving. Heat a large skillet over medium high heat. sear the tuna on both sides for 1 minutes. Remove from the skillet. Serve as directed above.