Leave the seeds & ribs in the jalapeño for spicier guacamole, take them out to make it milder. The spice level of peppers can vary, so start with less and add more!
Be sure to seed your tomato and only use the meaty flesh, or it will water down your guacamole.
Air causes avocado to oxidize & turn brown quickly, so store leftover guacamole in an airtight container with a double layer of plastic wrap pushed right up against the surface to keep it fresher longer.
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