Do I really need to chill the dough?
You will get cookies either way, but chilling for 30 minutes helps the flavor develop and keeps the cookies from spreading too thin. If you have the time, 1 to 24 hours in the fridge is even better for thicker cookies and deeper caramel flavor. If you are in a hurry, even 15 minutes in the freezer helps.
How do I know when the butter is browned, not burned?
Expect it to take about 5 to 8 minutes once it melts, depending on your stove. Watch for amber color and little brown bits at the bottom of the pan. It should smell nutty and caramel-like. If it smells sharp or looks very dark fast, pull it off the heat immediately and pour it into a bowl.
What if I lose a lot of butter when browning?
Totally normal for some moisture to cook off. If it looks like you are short (or you want maximum consistency), top it up with 1 to 2 tablespoons water or milk after you pour the brown butter into the bowl. You are basically replacing the water that evaporated so the dough behaves predictably.
Why did my cookies turn out cakey?
Common culprits are too much flour (scoop-and-level helps), overmixing after adding flour, or using too many eggs for the flour amount. Also make sure your baking soda is fresh.
Can I use chocolate chips instead of chopped chocolate?
Absolutely. Chips are tidy and consistent. Chopped chocolate is messier and more dramatic, which is my personal favorite.
Can I make these without a stand mixer?
Yes, and that is the point. A whisk and a spatula are all you need.