Eat and Drink Tempura NYC: KOA fried brownie created by Iron Chef Yuji Wakiya The tempura brownie at KOA is crispy, sweet, salty and creamy. Photo Credit: KOA By GEORGIA KRAL December 7, 2015 12:18 PM Print Share fbShare Tweet gShare Email You can fry that. Tempura is not just for vegetables and shrimp. At KOA (12 W. 21st St.), Master Iron Chef Yuki Wakiya is deep frying brownies. The tempura brownie is $12 and the restaurant is promoting it for National Brownie Day on Tuesday. We think this crazy mash-up should be eaten anyday! By GEORGIA KRAL Share on Facebook Share on Twitter Comments Comments section is temporarily on hold. Here’s why.