Rinse the lentils thoroughly, then soak them in a large bowl of water for 4 hours or overnight. After soaking, drain the water and rinse the lentils again.
Add the soaked lentils to a high-speed blender along with 2 cups of fresh water. Blend until the mixture is smooth and homogeneous.
Transfer the blended mixture to a small pot over medium heat. Bring it to a gentle boil. Then stir constantly until it thickens into a smooth, paste-like consistency (about 5 minutes).
Transfer the thick paste to a glass container and let it set in the fridge overnight.
Your tofu is now ready to be cooked. You can pan-fry it, air-fry it, or bake it.
