Beer Batter - let it rest before using or use immediately? I just purchased a deep fryer and have been looking at different recipes for making beer batter.  I noticed that some instruct you to let the batter sit for a number of hours before using it to coat veggies, meats, etc., while others do not mention this.  Does letting the batter rest make a difference in the flavor, texture, or anything else significant?
Yes, it changes the texture.  If you want it light, you need to use it quickly, as the bubbles will disappate over time.