First, drain the butter beans, reserving 2 tbsps of the tin juice. Using a food processor or stick blender, blend with the oil, salt, garlic, lemon zest and juice.
While the processor is still blending, add the cumin to a non-stick pan over a high heat. Toast for 30–60 seconds until fragrant, then add to the processor; continue blitzing until silky smooth.
Taste for seasoning and don’t be afraid to go heavy on the salt.
Rinse out and dry the pan, then heat 100ml of oil on high and line a plate with kitchen paper.
Carefully add the herbs and capers to the hot oil, fry for 1–2 minutes until crisp then, using a slotted spoon or fish slice, carefully transfer to the paper. If your pan is on the smaller side, we’d recommend frying the herbs in batches.
To assemble: using a spatula or the back of a spoon, spread the dip over a nice plate. Top with the drained crispy herbs and a few splashes of the infused pan oil. Zest over the remaining lemon half to finish.