I've done similar reductions when using DaVinci syrup -- I can go from a tablespoon down to about a tsp. of the syrup and still have flavor, depending on how much flavor I feel like having for that day.

Today, it was 2 tsp.!

Some days, plain is good -- if using vanilla whey powder you get a nice vanilla flavor without any additions.

Nice to have a versatile food like this.