In a saucepan cook lentils in broth with onions and garlic until the lentil are softened and the liquid is absorbed.
Place lentils in a food processor and allow them to come to room temperature. Add in curry, allspice, 2 Tbsp. of the chickpea flour, cilantro and carrot . Pulse multiple times until the mixture begins to form a thick chunky paste. If it is too chunky add in vegetable broth 1 Tbsp. at a time.
Place lentil dough in bowl and put in the refrigerator for about one hour.
To make the lentil burgers, measure out ¼ cup of the mixture. Make a ball in your hand and form a patty. You can use a little of the chickpea flour if the lentil dough is too sticky.
Heat oil in a non-stick skillet and lightly pan fry about 3 minutes on each side.
To make the sauce:
In a food processor place cut avocado, yogurt and chili powder. Blend until smooth.
Drizzle over lentil burgers to serve.