1-First Step: Gather and Prep Ingredients (Mise en Place) Measure all items accurately. Weigh flour for precision; scooping packs too much, leading to dry cookies. Soften butter to room temperature. This prevents greasy dough. Check egg temp. Cold ones cause lumps, fixing cookie dough problems solutions. Mix dry ingredients (flour, soda, salt) in a bowl. Sift if clumpy for even distribution.

2-Second Step: Cream Butter and Sugars Beat butter, white sugar, and brown sugar for 3-4 minutes until light and fluffy. Scrape bowl sides. This traps air for proper spread. Underbeating results in dense cookies; overbeating makes cakey ones. Add vanilla. Taste dough for balance. Adjust for dietary needs like less sugar.

3-Third Step: Add Eggs and Blend Beat in eggs one at a time, fully incorporating each. Dough may look curdled; it smooths out. This step builds emulsion. For vegan, use flax mix slowly. Now add dry ingredients gradually on low speed. Stop when just combined to avoid toughness.

4-Fourth Step: Fold in Chocolate Chips Gently stir in chips by hand. Overmixing breaks them, causing uneven melt. Chill dough 30 minutes if spreading is an issue. This firms butter, solving why cookies spread too much.

5-Fifth Step: Scoop and Bake Scoop 2-tablespoon balls, 2 inches apart. Flatten slightly for even bake. Bake 9-11 minutes until edges golden, centers soft. Cool on sheet 5 minutes, then rack. Overbaking crisps them too much.