Remove tofu from packaging. In a medium bowl, stir together Hoisin sauce, soy sauce, sugar, ginger, garlic, and red pepper flakes. Cut tofu into bite sized pieces. Heat olive oil in a medium cast iron pan over medium high heat. Drizzle with sesame oil and remove from heat..Extremely flavorful, General Tso s Tofu Stir Fry in just minutes! heat from dried red chilies, which you can find in most traditional and Asian grocery stores..Take out the tofu and in the same pan prepare the chili garlic sauce. For the sauce, in a sesame oil saute some fresh garlic, chili flakes, and tomato ketchup and then some sliced shallots. Add soy sauce, vinegar, and little honey to balance the hotness from the chili. Add water and bring the mixture to boil..