For the Peanut Sauce: If using roasted peanuts, process in a high-speed blender or food processor until a paste with the texture of wet sand forms, 3 to 4 minutes. (It will be coarser than peanut butter; you will get about 1 cup). Transfer peanut paste to a small bowl and set aside.

Add shallots, garlic, red chiles, bird’s eye chiles, palm sugar, salt, and shrimp paste to the now empty food processor or blender and pulse until the mixture resembles cooked oatmeal, about 30 seconds to 1 minute, using a flexible spatula to scrape down the sides of the bowl as needed. Add 1 or 2 teaspoons of water if mixture is too thick and not turning in the food processor.

In a small saucepan, bring lime leaves, tamarind, and 1 cup (240ml) water to a gentle boil over medium heat. Simmer, using a spoon or spatula to break up the tamarind pulp as much as possible, to infuse the flavors, about 5 minutes. Remove the lime leaves and remaining tamarind solids.

Stir in ground peanuts and chile paste and continue to cook until the mixture starts bubbling, then reduce heat to medium-low and simmer, stirring often to prevent sauce from sticking to bottom of the pot, until thick and creamy, 4 to 6 minutes. If you prefer a looser sauce, add water, 1 tablespoon at a time, until you reach your desired consistency. Add lime juice, if using, and season to taste. Set aside.

For the Gado Gado: Bring a medium saucepan of salted water to a rolling boil over high heat. Add potatoes, and cook until fork tender, 8 to 10 minutes. Using a colander, drain potatoes; set aside.

Bring a large saucepan of salted water to a rolling boil over high heat. Prepare an ice bath by filling a large mixing bowl with water and ice. Add Cabbage to boiling water and cook until translucent and just wilted, 1 to 2 minutes. Using tongs or a fine-mesh strainer, transfer to ice bath. When cool, remove cabbage from ice bath and transfer to a rimmed baking sheet lined with paper towels to dry. Set cabbage aside. Repeat with green beans, blanching until bright green and tender, 1 to 2 minutes; transfer to ice bath, then towels. Finally blanch bean sprouts until just wilted, 15 to 30 seconds; transfer to ice bath, then drain on towels.

To Assemble: Arrange potatoes, cabbage, green beans, bean sprouts, cucumber, eggs, and tofu on a large platter, then serve: Diners should select an assortment of ingredients from the platter, transfer them to their individual plate, drizzle with 2 to 3 tablespoons sauce, and garnish with shrimp chips and fried shallots.