Preheat oven to 350°F and line an 8x8 pan with parchment paper. Cream together the butter and sugar until fluffy. Mix in the egg, almond extract and vanilla extract.
Mix in the dry ingredients until well combined. Fold in your Christmas sprinkles and press into prepared pan. Bake for about 10 min. Let cool.
For the frosting, beat the butter until fluffy. Mix in the vanilla extract. Add in the powdered sugar 1 cup at a time. Add in the nondairy milk until you get your desired consistency.
Tope the cookie bars with the frosting and additional sprinkles. Slice and enjoy!