The best chocolate chip cookies come from Grandma Lollie. She "says" this is her recipe but they NEVER turn out as good as when she makes it.
Cream shortening and sugar together
The Adjustment: Ensure your butter is "cool room temperature"—it should be soft enough to dent with a finger but still hold its shape.
Warning: Never use melted or "greasy" room-temp butter if you want fluffy cookies; melted butter leads to immediate spreading and a "toffee" texture.
The Adjustment: Spend a full 3–5 minutes creaming the butter and sugars together until the mixture is pale and noticeably "fluffy" before adding the egg.
Why it works: This process beats physical air bubbles into the fat. If you just mix until combined, you miss out on that mechanical aeration.
Bake at 375 for 10 to 12 minutes