Prep Time 15 minutes mins
Cook Time 10 minutes mins
Resting Time 30 minutes mins
Total Time 55 minutes mins
Custard powder adds both vanilla flavor and a tender, chewy texture—look for instant vanilla custard powder or substitute instant vanilla pudding mix if needed, reducing sugar slightly to taste. For thicker cookies, chill the dough 1 to 2 hours; for thinner, chewier cookies, bake after the 30-minute chill. Do not overbake—pull them when the edges just set for maximum chew. If your butter is very soft or your kitchen is warm, add 1 to 2 tablespoons extra flour to prevent excessive spreading. For bakery-style crinkles, bang the pan once mid-bake to collapse centers slightly. Store in an airtight container at room temperature up to 4 days or freeze baked cookies up to 2 months.