Stir together the peanut butter, peanut oil, tea, ginger, garlic, jalapeno pepper, salt, sugar, soy sauce, vinegar, and sesame oil in a large mixing bowl until incorporated.
Place the egg noodles in a large bowl; add the cucumber and cilantro and mix together with your hands.
Pour the peanut sauce over the noodles; mix with your hands until evenly coated.