Chill the browned butter: We wish to freeze the butter till it’s strong all through however belief me, this speeds it up: Freeze the butter within the bowl for half-hour then give it a full stir, scraping down the perimeters, mixing the nonetheless melted elements within the middle over the solidified chunks. Return to the freezer for one more half-hour — it ought to now be completely strong all through. Minimize it into chunks, proper within the bowl. No have to make them even.
Warmth your oven: To 300°F. Line an 8-inch sq. cake pan with parchment paper that extends up two sides. There isn’t a have to grease it.
Make the shortbread dough one in all two methods:
Each strategies: Switch shortbread dough to ready baking pan and your fingers to press it into an excellent, flat layer, then use an offset spatula to clean the highest.
Bake the shortbread: For half-hour — it is not going to be totally baked but — and take away from the oven simply lengthy sufficient to form the shortbread.
To create the diamond form proven, use the again of a paring knife (sure, the boring facet) or a bench scraper to make gentle line indentations barely 1/4-inch into the shortbread, about 1 inch aside. Then, at a few 45-degree angle from the primary strains, make remaining indentations 1.5 inches aside. [Note: I absolutely never measure and it’s more intuitive than it sounds when you read the above.] Use a really skinny, sharp paring knife (that is my go-to) to chop alongside these strains to the underside of the pan. Use the again of a wood skewer (the boring finish) to dock the shortbread wherever it fits you (it’s for aesthetics) about 1/3 of the best way into the cookie.
End baking: Return the shortbread to the oven for one more 15 to twenty minutes, or till extra deeply golden on the edges. Let cool within the pan, or, should you’re impatient, allow them to cool for 10 minutes, after which take away them, utilizing one of many prolonged sides of the parchment paper lining the pan to make it simpler. Let shortbread cool utterly, then separate the shortbread the place they have been minimize. If wanted, use your paring knife once more to make clear separations.
Squiggle with icing (non-compulsory): House shortbread evenly out on a rack and place over a tray to catch drips. Place powdered sugar in a small bowl and add 1 tablespoon lemon juice, mixing to mix. We’re searching for a thick however drizzle-able consistency. Add all or a part of remaining 1/2 tablespoon lemon juice if wanted to attain it. Switch icing to a sandwich bag and snip a tiny little bit of the nook off and drizzle the icing over the shortbread. Let set for one hour at room temperature.
Do forward: Shortbread retains for 1 week, if not longer, at room temperature. It freezes nicely too, simply wrap it tight, and don’t squiggle with icing till defrosted.