Grandpa's Favorite Butter Cookies

Step 1 -In the bowl, add the butter and the brown sugar and beat with an electric hand mixture until it is light and fluffy.

Step 2 -Add the eggs, the water, and the vanilla to the butter mixture and beat to combine.

Step 3 -In a second bowl, add the flour, the cream of tartar, and the baking soda and whisk to combine.

Step 4 -Gradually add the flour mixture to the butter mixture and mix well.

Step 5 -Shape the cookie dough into 2 logs and wrap them individually in plastic wrap.

Step 6 -Place the dough logs in the refrigerator and let them chill, for at least 4 hours and up to overnight.

Step 7 -Preheat the oven to 375 degrees F.

Step 8 -Grease one or two baking sheets.

Step 9 -Cut each of the dough logs into 1/4-inch-thick slices.

Step 10 -Place the cookie slices 2 inches apart on the prepared baking sheets.

Step 11 -Bake the cookies, in batches, until they are lightly browned, 8-10 minutes.

Step 12 -Transfer the baking sheets to a wire rack and let the cookies cool. Repeat the baking process with the remaining dough.

Step 13 -Serve.