Start by draining and rinsing the canned chickpeas thoroughly under cold water. This removes extra sodium and improves the taste. If you want an extra smooth hummus, you can peel off the thin skins from the chickpeas before blending.
Add the chickpeas, pepperoncini juice, tahini, salt, and black pepper to a food processor. Blend the mixture for about 2–3 minutes until it becomes smooth and creamy. Scrape down the sides of the bowl if needed to ensure everything blends evenly.
While blending, check the consistency of the hummus. If it seems too thick, add a little more pepperoncini juice or a splash of water. Continue blending until the mixture becomes light, fluffy, and smooth.
Transfer the hummus to a bowl and stir in the chopped pepperoncini peppers. Mixing them in after blending gives the hummus little bursts of tangy flavor and texture.
Spread the hummus into a serving bowl and smooth the top with a spoon. You can garnish it with extra chopped pepperoncini or a drizzle of olive oil before serving.