It is amazing how much learning goes on when we aren't looking. All three of my kids are good cooks. They came from a home that fixed their meals every night (at least!). I don't ever remember teaching them how to cook, but they tell me that none of their friends cook, they come to their place for a good meal.
How affirming this is, that your daughter that doesn't give you much feedback, has given you feedback on something you love, in the most positive way possible. I am so glad that you still have times between you that you are surprised, and humbled.