Remove tempeh from packaging and cut into bite-sized cubes. Set aside.
Thinly slice shallots and garlic. Cut green onions into 1 inch pieces. Slice Thai chilis. Set everything aside.
Heat up 1/3 to 1/2 cup of oil in a large, deep pot. Once oil is hot, carefully add in tempeh and fry for about 2-3 minutes or until golden brown. Remove tempeh from hot oil.
Lower heat to low/medium. Add in garlic and shallots and stir fry until fragrant (about 2 minutes). Add in ginger, bay leaf, Thai chilis, and tempeh. Mix everything together.
Add in 1/4 cup kecap manis, green onions, and sprinkle salt to taste. Stir fry for another 2-3 minutes until everything is mixed well and sauce has caramelized. Enjoy as a side dish or as a rice bowl.