01 -
Line a square metal 8x8 baking pan with parchment paper, ensuring it hangs over all sides. Preheat the oven to 190°C (375°F).
02 -
Cream the butter and sugar in a stand mixer for 3 minutes until light and fluffy. Scrape down the bowl.
03 -
Mix in the eggs and vanilla extract until just combined. Scrape down the bowl.
04 -
Mix in the flour, salt, and baking soda until the dough starts to come together.
05 -
Chill the dough in the refrigerator for 20 minutes to firm up for easier handling.
06 -
Press half of the cookie dough (348g) into the prepared pan.
07 -
Remove the first layer from the pan by lifting out one parchment paper edge and transfer to a baking sheet. Keep in the freezer temporarily.
08 -
Replace the parchment strips in the pan, ensuring all sides remain covered. Press the remaining cookie dough evenly into the pan.
09 -
Spread the strawberry preserves evenly over the dough layer in the pan.
10 -
Place the frozen cookie dough layer on top of the jam. Peel off the parchment and press firmly to secure.
11 -
Bake the cookie bars for 25-28 minutes or until the top is golden brown.
12 -
Allow to cool completely on a wire cooling rack.
13 -
Pull the sides of the parchment to remove from the pan and flip upside down so the bottom becomes the top.
14 -
Whisk together the powdered sugar, milk, and vanilla extract until smooth.
15 -
Pour glaze over the top of the bars and sprinkle with rainbow sprinkles.
16 -
Let the bars sit for 1-2 hours at room temperature until the icing sets, then cut into 15 bars and serve.