Sweet and Spicy Gochujang Fried Chicken

Name: Sweet and Spicy Gochujang Fried Chicken
Cook time: 45 min
Total time: 45 min
Cuisine: Korean
Ingredients: 4 Tbsp Gochujang; 6 Tbsp Ketchup; 6 Tbsp Maple Syrup; 4 Tbsp Soy Sauce; 2 Tbsp Rice Wine Vinegar; 1 Tsp Brown Sugar; 2 Tsp Sesame Oil; 50ml Water; 2cm Knob of Ginger; 4 Cloves of Garlic; 800g Skinless Boneless Chicken Thigh Fillets; 2 Eggs; 120g Cornflour; 40g Plain Flour; 1 Tsp Baking Soda; 2 Tsp Garlic Powder; 2 Tsp Onion Salt; ½ Spring Onion; 1 Tsp Toasted White/Black Sesame Seeds; 4 Tbsp Mayo; Salt; Pepper; 1L Vegetable oil (For Frying)