So I had to figure out how to substitute that buttermilk powder.

所以我必须弄清楚如何替代酪乳粉。

But the kicker is the buttermilk powder, which really gives that nice tang to the sour cream and onion and makes it kind of have that iconic flavor.

但更重要的是酪乳粉，它确实给酸奶油和洋葱带来了美妙的味道， 并使其具有那种标志性的味道。