Line a large plate or platter with parchment paper. Set aside.

Add the flour, masa harina, baking powder, kosher salt, and ¼ cup sprinkles to a bowl and whisk them together. Set aside.

Add the butter, sugar, honey, and vanilla into the bowl of a stand mixer. Using the paddle attachment, beat it all together until light and fluffy. Add the egg and mix on low speed until incorporated.

Slowly add the dry ingredients to the wet ingredients, scraping down the sides of the bowl a few times.

Add the last ½ cup of sprinkles to a plate and use a tablespoon scoop to scoop out a heaping tablespoon of cookie dough. Roll the cookie dough into a ball and then flatten the ball in between your hands. Press one side of the flattened cookie into the sprinkles and place the cookie sprinkle side-up on the lined plate. Repeat until all the cookie dough has been made into cookies.

Cover the cookie dough and refrigerate for 1 hour. You may need more than one lined plate.

Preheat the oven to 350ºF.

Remove the cookie dough from the oven and transfer the parchment paper to the baking sheet. Bake the cookies for 12-14 minutes or until the cookies begin to turn a golden brown color.

Let the cookies rest for 1 minute before transferring the cookies to a cooling rack.