Soft, chewy cookies packed with colourful rainbow sprinkles and delicious buttery vanilla flavour. An easy, fun treat that's perfect for birthdays and celebrations!
Prep Time20 minutesmins
Cook Time10 minutesmins
Total Time30 minutesmins
Servings: 16cookies
Ingredients
312gplain/all-purpose flour
2teaspoonsbaking powder
½teaspoonbaking soda
1tablespooncornflour/cornstarch
¼teaspoonsalt
115gunsalted butterpartially melted
150glight brown sugar
1large egg
1large egg yolk
2teaspoonsvanilla extract
80grainbow sprinkles
Instructions
Preheat the oven to 180°C/160°C Fan/350°F/Gas 4. Line a large baking tray with parchment paper or a silicone baking mat. Set aside.
In a medium mixing bowl, whisk together the flour, baking powder, baking soda, cornflour, and salt. Set aside.
In a separate large mixing bowl, whisk together the partially melted butter and light brown sugar until combined.
Add the egg, egg yolk, and vanilla extract, and whisk until smooth and combined.
Add the dry ingredients and mix until just combined. Gently fold in the rainbow sprinkles.
Roll the dough into balls, approximately 37g each, or use a medium cookie scoop. Place onto the prepared baking tray, leaving enough space between each one for spreading.
Bake for 10 minutes, or until the edges are just set and lightly golden. The centres will still be soft but will firm up as the cookies cool.
Leave to cool on the baking tray for 5–10 minutes before transferring to a wire rack to cool completely.
Notes
Rainbow sprinkles: Use rainbow jimmies for the best results, as they hold their shape and colour during baking. Avoid nonpareils, as their colours can bleed into the cookie dough.Storage: Store the cookies in an airtight container at room temperature for up to 1 week.Make ahead: Cookie dough balls can be refrigerated for up to 2–3 days or frozen for up to 3 months. Bake straight from frozen, adding a little extra baking time if needed.Freezing: Baked cookies freeze well for up to 3 months. Allow to cool completely before placing in a freezer-safe container or bag. Thaw at room temperature before serving.