Fill a large bowl with water mixed with the juice of 1 lemon. Set aside.
Remove the tough outer layer of the banana blossom and discard it, along with the undeveloped "baby" bananas inside. Carefully pull away the next several layers of leaves, regularly cutting into the stem to make it easier to break them off (the aim is to keep the leaves whole if possible). Lay several leaves on top of one another and slice the leaves crosswise into 1/4-inch wide strips. To keep the leaved from turning black, place sliced leaves in the acidulated water, turning occasionally.
Continue in this fashion, releasing the leaves discarding the undeveloped bananas and cutting the leaves into strips, until you reach the "heart." Cut this center in half lengthwise, remove as many "babies" as possible, and slice the remaining leaves widthwise about 1/4-inch thick.
In a medium saucepan, bring the 4 cups of water to a boil. Add the chicken breast and return to a boil, reduce the heat and simmer for 10 to 15 minutes, until the meat is tender. Remove the chicken from the pan and let cool slightly, then shred the meat with your fingers.
Preheat the oven to 350 degrees F. Put raw peanuts in a shallow pan and bake, stirring occasionally to ensure even roasting , until golden brown, 10 to 15 minutes. Set aside to cool. When the nuts are cold, grind them with mortar and pestle.
In a small saucepan, bring the water to a boil and add the sugar, stirring to dissolve. Set aside and allow to cool.
Pound the garlic and shallot into small pieces with a mortar and pestle; or grind in a food processor. Stir into sugar water, then add the remaining ingredients.