Lofthouse-Style Cookies

Lofthouse-Style Cookies 1 cup butter, softened 3/4 cup vegetable oil 1 1/4 cups granulated sugar 2 tablespoons water 2 teaspoons vanilla extract 2 eggs 1/2 teaspoon baking soda 1/2 teaspoon cream of tartar 1/2 teaspoon salt 5 1/2 cups all-purpose flour Frosting 3/4 cup butter, softened 3 cups confectioners' sugar 1-2 tablespoons half-and-half 1 teaspoon vanilla extract Sprinkles Preheat oven to 325 degrees and grease two baking sheets. Place butter, oil, and sugar into the mixing bowl of an electric mixer. Beat until combined. Beat in water and vanilla. Mix in eggs one at a time. Add baking soda, cream of tartar, salt, and flour and mix until thoroughly combined. Using a medium scoop or 1/3 cup measuring cup, scoop dough onto baking sheets. Using the bottom of a measuring cup, slightly flatten each mound or dough. Bake for 10 to 12 minutes. Do not let cookies brown at all. Cool on pans several minutes and then transfer to wire rack to cool completely. For frosting, beat butter with an electric mixer until smooth. Gradually beat in confectioners' sugar, half-and-half, and vanilla. Spread frosting on cookies and decorate with sprinkles.