> Skip to content

Recipe  •  22 November 2023


Rainbow cookie pie

A decadent chewy, colourful cookie cake that's perfect for any occasion.

Perfect for any birthday party, this cookie pie has bright layers of rainbow chocolate inside our original chewy cookie recipe, topped with M&Ms and sprinkles.

Serves: 8 or 12



Cookie dough

  • 190g (1 stick plus 4 tbsp) unsalted butter
  • 150g (¾ cup packed) light soft brown sugar
  • 150g (⅔, cup) caster sugar
  • 1 egg plus 1 egg yolk
  • 300g (2½ cups) plain flour
  • 1 tsp baking powder
  • 40g (2 tbsp) golden syrup
  • 60g (2¼oz) bake-stable sprinkles, plus extra for topping
  • 60g (2¼oz) M&Ms, plus extra for topping
  • 150g (5½oz) white chocolate chips


  • 1kg (2Ib 4oz) white chocolate spread (or 1kg/2Ib 4oz white chocolate mixed with 80ml/5½ tbsp vegetable oil)
  • Pink, orange, yellow, green, blue, indigo and violet oil-based food colourings

Decoration (optional)

  • 100g (6½ tbsp) unsalted butter
  • 180g (1⅓, cups) icing sugar
  • 3-5 drops of vanilla extract

Special Equipment

  • Mixer or hand-held electric whisk
  • 20cm (Bin) round cake tin, lined
  • Piping bag and open star nozzle



  1. To make the cookie dough, put the butter and both sugars into a mixer and, using the paddle attachment, cream together on a high speed (or use a hand-held electric whisk). Add the egg and yolk and mix.

  2. Sift in the flour and baking powder, then add the remaining cookie dough ingredients. Combine slowly until a dough forms and the sprinkles, M&Ms and chocolate chips are evenly distributed.

  3. Press a thick layer of dough evenly into the bottom of the lined tin. Press more mixture around the sides of the tin and leave a gap about 2.5cm (lin) from the top. Cover and set aside the remaining cookie dough.

  4. Melt the white chocolate spread (or white chocolate mixed with oil) in a bowl in the microwave and divide between seven bowls. Use the oil-based food colourings to colour each bowl a colour of the rainbow. Carefully pour the last rainbow colour (violet) into the cookie base and set in the freezer until tacky (about 10 minutes). Repeat with each colour, finishing with pink. Return to the freezer.

  5. Preheat the oven to 195°C (175°C fan/385° F/Gas 5½).

  6. After at least 30 minutes in the freezer, remove the tin and use the remaining cookie dough to make a lid, place it on top and seal the edges. Push some extra M&Ms into the top along with a handful of sprinkles. Bake for 30 minutes. Leave to cool completely in the tin, then chill in the fridge overnight.

  7. Slice the pie evenly into 8 or 12 pieces. If decorating with buttercream, whip the butter on a high speed until whitened. Sift in the icing sugar, add the vanilla extract and mix until combined. Load a piping bag with an open star nozzle and pipe whips on top of each slice. Finish with more sprinkles and M&Ms.

Feature Title

Finch Bakery Disco Bakes and Party Cakes
More than 70 showstopping treats for every occasion.
Read more

More features

See all recipes
Coconut & raspberry Viennese whirls

Jam-filled shortbread swirl biscuits with coconut twist.

Slow Cooker Honey and Hoisin Duck Wraps

Cooked on low for 8 hours, the tender duck will simply fall off the bone, ready to be wrapped in tortillas with spring onions, cucumber and hoisin sauce in this slow cooker take on the classic takeaway dish.

Slow Cooker Butterbean Pesto and Chorizo Stew

Packed with butter beans and spicy chorizo this easy stew is topped with pine nuts, fresh basil and dollops of pesto.

Slow cooker veggie Lancashire hot pot

A meat-free take on the classic dish, this hearty hot pot is packed with lentils, mushrooms and carrots. Swap the Worcestershire sauce for Henderson's Relish for a fully vegetarian version.

Tofu, Sesame and Soy Noodles

Super simple, and healthy too!

Garlic Butter Chicken Bites

Delicious, soft and very versatile.

PB & J No-Cook Porridge

PB & J in breakfast form, and super easy too!

Cod Puttanesca

Inspired by the classic pasta dish, this easy one-pot dish sees cod fillets cooked in a rich tomato sauce with olives, capers and anchovies.

Hearty Sausage Casserole

A wholesome comfort classic, this warming one-pot casserole is ideal for cold winter evenings.

Tomato Boursin Pasta

This simple tomato pasta is stirred through with Boursin cheese to create a silky smooth creamy sauce.

Chicken Tikka

Whenever I go to a BBQ restaurant, I have a difficult time choosing between chicken or beef. I usually lean toward chicken and save beef for special occasions. You really can’t go wrong with a spiced chicken on the BBQ.

Spinach and Potato Curry

A tasty, well-balanced Indian veg dish.

Looking for more recipes?

See all recipes