Add the soy curls to a medium bowl and cover with 2 ½ cups of vegetable broth. Set aside for 10 minutes.
In a small bowl, combine ¼ cup tahini, 1 tablespoon ketjap mannis, minced garlic, grated ginger, 1 teaspoon sambal oelek, and 3 tablespoons water. Mix well. The sauce should be thick, but easily spreadable.
Once the soy curls are rehydrated, drain them and press against the side of the colander to release excess liquid. If they are still quite moist, lay them on a paper towel-lined plate and pat them dry with another paper towel.
Add the soy curls to a large bowl with half the satay sauce. Coat the pieces using a spoon or your hands. Set aside for 10 minutes, tossing the pieces after 5 minutes.
Preheat the oven to 425 F (220 C). Line a baking tray with parchment paper.
Add the soy curls to the baking tray in a single layer. Baste with more sauce if needed. Bake for 10 minutes. Flip the pieces, brush on more sauce, then continue baking for 5-10 minutes until they are firm and slightly brown.
Serve with the remaining sauce over the top or on the side.