Ingredients
Method
- In a medium bowl, whisk flour, baking soda, baking powder, salt, and cornstarch (if using). Set aside.
- In a large mixing bowl, cream butter, brown sugar, and granulated sugar for 2–3 minutes until pale and fluffy. The mixture should look soft and slightly airy.
- Add eggs one at a time, mixing after each. Stir in vanilla. The batter should look smooth and glossy.
- Add the dry ingredients and mix on low just until no flour streaks remain. Overmixing can make cookies tough.
- Fold in mix-ins if using. The dough should be thick, soft, and scoopable, not sticky like cake batter.
- Cover and chill the dough for at least 1 hour (2–3 hours is even better). Chilling helps the cookies bake thicker and taste more caramelized.
- Preheat oven to 350°F. Line baking sheets with parchment paper.
- Scoop dough into 2-tablespoon portions (or slightly larger for bakery-style). Roll lightly into balls and place 2–3 inches apart.
- Bake 10–12 minutes. Look for golden edges and a slightly underdone center. The tops should look set but still soft.
- Let cookies rest on the baking sheet for 5 minutes (they finish cooking gently from the residual heat), then move to a rack to cool.
- If you like a thicker center, gently “scoot” cookies into a rounder shape with a spoon while still warm.
- Serve warm for the softest texture, or let them cool fully for a chewy, tender bite.
Notes
Common mistakes and fixes:
- Flat cookies: Butter too warm or dough not chilled. Chill longer and use parchment on a cool baking sheet.
- Dry cookies: Too much flour or too long in the oven. Measure flour carefully and pull cookies when centers still look soft.
- Tough texture: Overmixing after adding flour. Mix just until combined.
- Uneven baking: Dough balls not the same size or oven runs hot. Use a scoop and rotate the pan halfway through.
- Dairy-free: Use a plant-based butter that’s meant for baking. Chill the dough well since some vegan butters spread more.
- Gluten-free: Use a cup-for-cup gluten-free baking blend. Chill longer and expect a slightly more delicate crumb.
- Reduced sugar: You can reduce total sugar slightly, but don’t remove too much or texture changes. Keep at least 1 cup total sugar for structure.
