Preheat oven to 350F. Line two baking sheets with parchment paper or use cooking spray.

Using an electric mixer or a wooden spoon, cream the butter and sugars until light and fluffy. Beat in the egg and vanilla.

Combine the flour, baking soda, salt, rolled oats and raisins. Stir into butter mixture.

Try not to eat too much of the dough and scoop it into tablespoon sized drops on the cookie sheets...about 2 inches apart.

Depending on your oven bake for 12-15 minutes, until bottom starts to brown. (start checking after 10 minutes as that's all they take in my oven). Cool before removing to cooling rack sheet. Hide because they don't last long.