Heat the sesame oil in a small pot over medium-low heat. Add in the garlic cloves and saute and stir for about a minute. Add in the scallions and saute for another minute. Add in the lemongrass, curry powder and red chili flakes and stir until blended and remove from the heat.
While the mixture is still warm, add in the chunky peanut butter and gently stir until well-blended. Add in the soy sauce, crushed peanuts and cilantro and stir again. Set aside.
Cut the tofu block in half and then cut each of those haves into right angle triangles. Cut a small 1/8-inch wide slit in the longest side of the triangle. Dab the moisture off of the tofu with some paper towels and set aside.
In a medium-sized pot, heat the oil (enough to submerge the triangles in) over medium-high heat.
After about 7 minutes, test the oil’s readiness by inserting a wooden spoon into the pot—if bubbles immediately form around the spoon, the oil is ready.
Dip the tofu triangles into the Ener-G mixture, and then coat it in some of the cornstarch, making sure all sides are covered and tapping off any excess. Place the triangles, two at a time, into the oil and fry until golden, about 4 minutes. Carefully remove from the pot and place on paper towels to drain.
Once the triangles have cooled enough to handle, carefully break open the recess and spoon an overflowing amount of the lemongrass-garlic mixture into it. Serve immediately.