To save time, you can purchase pre-cooked shrimp from the seafood section of your grocery store.To make the toasted rice powder, you can use a coffee grinder or food processor to grind the rice into a powder. Alternatively, you can purchase pre-made toasted rice powder at an Asian grocery store.When mixing the shrimp larb ingredients, use your hands to ensure that the flavors are evenly distributed.To make the dish spicier, add more chopped chilies or a drizzle of chili oil.To make the dish milder, omit the chilies or use less fish sauce.