1cupsalted Land o' Lakes brand butter, softened(230 grams)
1cupgranulated sugar(200 grams)
½cupbrown sugar(100 grams)
1largeegg, room temperature(48 grams)
1 ½teaspoonsvanilla extract
¼teaspoonalmond extract
½teaspoonbutter extract or Happy Home butter flavoring
Instructions
Preheat the oven to 350 degrees F. Line two large rimmed baking sheets OR AirBake type cookie sheets with parchment paper. If using a convection oven, preheat to 330 degrees F.
Whisk together the flour, baking soda, cream of tartar and salt. Set aside.
In the bowl of a stand mixer fitted with the paddle attachment, beat the softened butter and both sugars on medium speed for about 2 minutes. Stop mixer, scrape the bowl and beat on medium high for another 2-3 minutes or until light and creamy.
Add the egg and beat for another minute, stopping to scrape the side of the bowl after 30 seconds. Beat in the flavorings (vanilla, almond and butter flavoring, if using)
Add the flour mixture, stirring just until it’s incorporated. The dough should be soft and scoopable.
Using a large cookie scoop, scoop 8 balls of dough onto a dinner plate. Shape them into balls then press down slightly to make ¾ to 1 inch thick rounds.
Cover tops with sparkly sugar.
Arrange the cookie dough rounds about 5 inches apart on baking sheet. You'll probably be able to fit about 4 on one baking sheet. I recommend baking one sheet at time.
If you are using AirBake type cookie sheets, skip this step and just bake until done. But if you are using normal baking sheets, try this. Put a rimmed baking sheet on the rack and stack a slightly larger baking sheet with the cookies on top of it so that there's a layer of air beneath the bottom of the baking sheets.
Bake the cookies for about 15 minutes, rotating the pan halfway through, or until the cookies are lightly brown around the edges and the center appears set but is still a bit pale. It should have tons of little wrinkles and crevices.
Let cookies cool directly on the cookie sheet for about 10 minutes or until they are firm enough to stay on a rack without falling through. Transfer to a rack and let cool completely.