*To make soy free soy sauce substitute, place all ingredients in a small saucepan and whisk until well mixed. Bring to a boil over medium high heat, then reduce heat to low and simmer for about 15 minutes, until liquid has reduced by half.
Heat deep fryer to 375, or heat one inch of oil in a large skillet to 375. In a small bowl, whisk egg replacer until foamy. In a medium bowl, mix 2 cups cornstarch, salt, and cayenne. Dredge turkey in egg replacer and then in cornstarch mixture. Fry half of the turkey at a time until crispy and golden, about 3 mins per side on stove or 5-6 minutes total in deep fryer. Drain turkey on a brown paper bag or paper towel.
Meanwhile, add all sauce ingredients except cornstarch/water mixture to a medium sauce pan and mix well. Stirring often, bring to a boil over medium-high heat. Once boiling, reduce heat to medium-low and slowly stir in 2 Tbl cornstarch/water mixture. Stir constantly until sauce thickens, about 3 minutes. Remove from heat.
Serve turkey with sauce drizzled over the top, or mix half of the sauce in a bowl with the turkey peices, tossed to coat.