See the notes regarding spice level. For a mild jerk marinade, make sure to remove the ribs and seeds of the jalapeños. For a spicier marinade, leave ribs and seeds in; simply trim off the stem.
To a blender, add all ingredients for the jerk marinade and blend until smooth. At this point, feel free to give it a taste and adjust the spices to your exact preferences.
Pour the marinade over the tofu in the baking dish and give the tofu a flip to evenly coat. (Or, pour the marinade into the gallon bag with the tofu, seal the bag, and gently toss and massage the marinade in the tofu.)
Cover and let the tofu marinate in the fridge for at least 1 hour. You can also prep this ahead and let it marinate in the fridge overnight. You may wish to give the tofu another flip (or give the bag a gentle toss if using) to help it marinate evenly.