Rinse the red lentils well under running water.
Place them in a bowl, cover with water and soak for several hours until soft and slightly swollen.
Drain the lentils thoroughly.
Blend the soaked lentils until you get a smooth, thick mixture.
Add psyllium husk, baking powder, olive oil, apple cider vinegar, salt and any spices you like, then mix well.
Let the dough rest for 15 minutes to thicken.
Line a loaf pan with parchment paper.
Transfer the dough into the pan, smooth the top with a wet spatula and sprinkle sesame seeds on top.
Bake in a preheated oven at 350°F (about 175–180°C) for 60–70 minutes, until firm and lightly golden.
Cool in the pan, then remove and slice once the bread has cooled.