Cover ⅓ cup cashews with boiling water to soak.
Prepare 1 cup vegetable stock.
Dice 1 large onion and mince 3 cloves garlic. Add to a pan over medium heat with:
After 10m or when the onions have softened, add and simmer for 6m or so until fragrant:
Rinse the cashews and add to a mini blender or food processor. Add a ladle or two of the sauce depending on blender size and blend till smooth.
Transfer the blended sauce back into the pan with the rest of the Butter Chicken sauce.
Add 1 tin chickpeas together with their water to the pan. Simmer for an additional 10m over low heat.
Serve over yellow rice.
Modified from Ceara's Kitchen