Step 1

Combine ingredients- In a 4 quart or larger pot, combine the onion, coconut milk, Thai red curry paste, fish sauce (or soy sauce), brown sugar, stock and red lentils. Stir to combine, cover, bring to a boil, then reduce the heat to simmer.

Step 2

Simmer- Simmer for 20 minutes, stirring and using the spoon to mash the curry paste into the mixture (this is important, otherwise you could have chunks of curry paste in your curry- not great!). When curry is thickened and lentils are softened, the curry is ready to serve.