Preheat the oven to 350℉ (177℃). Line baking sheet pans with silicone baking mats or parchment paper.
In a medium mixing bowl, whisk together the cake flour, cornstarch, baking powder, and salt. Set aside.
In the bowl of a stand mixer fitted with a paddle attachment or in a large mixing bowl with an electric hand mixer, cream the unsalted butter, vegetable oil, powdered sugar, and granulated sugar until smooth and creamy. Add in the egg, vanilla extract, and almond extract and mix until smooth. Pour in the dry ingredients and mix on low speed until a soft cookie dough forms. Fold in the Christmas jimmie sprinkles.
Portion the cookie dough using a large cookie scoop (3 tablespoons) and place on the prepared baking sheet pan, allowing room for spreading. Bake the cookies for approximately 12 minutes until the cookies puff up in the center and remain pale on the edges. Cool the cookies on the pan for 1 minute and then transfer to a wire rack to cool completely.