
Preheat the oven to 350 degrees Fahrenheit. Line two baking sheets with parchment paper and set aside.
In a large bowl, whisk together 1 ½ cups all-purpose flour, 1 ½ teaspoons baking powder, ¼ teaspoon salt, and 1 teaspoon cornstarch Set aside.
In another bowl or in the bowl of a stand mixer, beat ½ cup softened unsalted butter and ¾ cup granulated sugar until smooth. Add in 1 large egg, 1 teaspoon vanilla extract, and ¼ teaspoon almond extract, and mix until combined.
Add the dry ingredients to the sugar mixture and mix until combined. Mix in ⅓ cup of the ½ cup sprinkles by hand. Use a cookie scoop to scoop the dough and roll it into balls by hand. Then, press the tops of each ball of dough with the remaining sprinkles.
Place the cookies on a cookie sheet, leaving 2 inches of space between each one. Bake for 10-12 minutes. The middle should still be gooey when removed from the oven. Allow them to cool on the tray. They will finish cooking there.