Is the seltzer water essential for this crust? I don't have any, and would very much appreciate knowing whether there is a good substitute. Thank... ;o

French Onion Tart
Recipe question for: French Onion Tart


Sam1148 October 25, 2013
Get a Soda Stream. To make soda water on demand. It's excellent for all type of drinks (and even for baking and making fried batters) ours has earned a coveted spot on the counter top for past 5 years.
Droplet October 24, 2013
A pinch, 1/8 tsp or so, of baking powder would be a good substitute.
Greenstuff October 24, 2013
People say that using seltzer water in pie crusts makes them flakier. But I would not hesitate to substitute water in that (delicious looking!) recipe.
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