A Galician friend tells me the eggs are simply to hold the other ingredients together so you might be happy to use fewer that 6 especially if, like us, you cannot always get lots of eggs at the moment
I might be inclined to walk in westerly direction and get a train back to the start point. Cheaper than getting taxis to transfer luggage ''backwards''. I had to get myself back to Bilbao unexpectedly a few years ago from Santiago and it was a lovely train ride
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