1. Peel the onions, cut into half-moons.
Soak the lentils in cold water the day before or read the instructions on the lentil box.
2. Rinse the lentils, drain.
Melt the butter in a sauté pan or Dutch oven, then add the onions.
3. Pour the lentils over the onions, season with salt, pepper, add the curry, mix.
4. Pour water to the same level as the lentils, cook over low heat for 15 to 20 minutes.
Taste, adjust the seasoning. If it lacks water, add a glass of water or broth.
5. Prepare your sunny-side-up eggs.
Sprinkle with chopped or powdered basil.