Prep Time 15 minutes mins
Cook Time 18 minutes mins
Resting Time 30 minutes mins
Total Time 1 hour hr 3 minutes mins
Crushing the oats slightly (by pulsing a few times in a food processor or pressing with your hands) helps the shortbread hold together while still keeping a nubby crunch. Use room-temperature butter for proper creaming; cold butter will make the dough crumbly, while overly warm butter will spread too much. If you prefer crispier cookies, flatten thinner and bake on the longer side; for softer centers, keep them thicker and bake on the shorter side. Toasting nuts enhances flavor and crunch—toast in a 350°F oven for 6 to 8 minutes until fragrant, then cool before adding. Swap pecans for walnuts or skip nuts for a nut-free version, and feel free to add a pinch of nutmeg or cardamom for warmth. Store in an airtight container for up to 1 week, or freeze baked cookies up to 2 months; the dough also freezes well—scoop, freeze solid, then bake from frozen adding 1 to 2 minutes.