Cook your rice, either in a rice cooker or on the stove.
Zest and juice the lemon and peel and grate the ginger while the rice is cooking.
In a skillet, heat the oil and butter over low heat. When it's warm, add the lemon zest, lemon juice, grated ginger, turmeric, salt and pepper. Cook, stirring until it forms a bit of a paste, about 5 minutes. Stir into the rice and serve.