Saute walnuts & sesame seeds in sesame oil over medium-low heat, until the walnuts begin to sizzle. Sprinkle curry powder, salt & sugar over the walnuts, stirring to coat. Stir-fry until the curry powder begins to brown, about 2 minutes. Remove from heat. Combine remaining ingredients in a small bowl. Drizzle over the walnut mixture. Stir until thoroughly coated. Allow to cool before serving.