Toast pumpkin seeds and dried chili in a dry skillet over medium heat for 2–3 minutes, until golden and fragrant. Set aside.
While the chilli and pumpkin seeds are toasting, slice the chicken livers into a few pieces (they will cook quicker and more evenly when sliced).
Melt 1 tbsp butter in the pan. Add onion, garlic, and half the salt; sauté 5–7 minutes until soft and translucent.
Stir in the remaining butter, sliced livers, cumin, coriander, oregano, pepper, and the rest of the salt. Cook 3–4 minutes per side, until browned but still slightly pink inside.
Pour in lime juice to deglaze, scraping up any browned bits for extra flavor.
Let cool slightly, then transfer to a large cup or jar (or the bowl of your standard mixer) with the pumpkin seeds, chili, and crème fraîche.
Blend until smooth. For a softer, spreadable pâté, add up to ¼ cup milk. Add cilantro and pulse to combine.
Taste and add a little more salt or lime juice if necessary.
Spoon into jars, cover, and chill for 2 hours. Garnish with olive oil, dried chili, pickled onions, lime zest, or fresh coriander.
To serve, spread it on sourdough toast or crackers with a squeeze of lime. You could also serve this pâté as part of a mezze or tapas platter with pickled vegetables or pair it with fresh herbs, sliced radishes, or crusty bread for a rustic snack.