Lucky Charms Blondies are an easy dessert recipe, using a cake mix that’s perfect any time of year but especially on St. Patrick’s Day!
Quick Overview: Bake for 30 minutes at 350° and allow to cool if frosting is desired! See below for ingredients for blondies and fun Lucky Charms frosting!
Why you’ll love this recipe
I just love making holidays feel fun and festive. I say it’s for my kids, but honestly I love it just as much as they do!
I made this super cute St. Patrick’s Day printable a few years ago (you can get it for free), and this year I think I’m going to make this Lucky Charms blondies recipe for dessert and this St. Patrick’s Day dessert charcuterie, on St. Patrick’s Day!
These Lucky Charms bars are quick and easy to make but they are packed full of flavor, color, and fun. You need to try them for yourself! The bite of the soft blondie with the crunch of the cereal pieces may just be my favorite! (Well, these and the Lucky Charms Treats too of course.)
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Ingredients
This recipe uses simple ingredients (and some festive, fun sprinkles) to create a yummy dessert that kids of all ages will love!
You’ll need:
Blondies
- 1 box white cake mix
- 1 large egg
- ⅓ cup oil vegetable or olive work well
- ¼ cup water
- ¼ cup whipping cream 35% cream
- ¾ cup white chocolate chips
- ¼ cup St. Patrick’s Day themed sprinkles optional
Frosting
- ½ cup butter 1 stick, softened at room temperature
- 4 ounces cream cheese softened at room temperature
- 1 tablespoon milk
- 4 cups powdered sugar aka icing sugar
- ⅛ teaspoon salt
- 2 teaspoons almond extract
- green food coloring optional
- 1 entire box of Lucky Charms cereal
- St. Patrick’s Day themed sprinkles optional
How to make this easy blondie recipe
- Preheat oven to 350°, spray a 9×13 baking dish and set aside.
- In a large bowl combine the cake mix, egg, oil, water, whipping cream, and mix well. Fold in the white chocolate chips and sprinkles.
- Spread the batter evenly in the prepared 9×13 baking dish.
- Bake for 30 minutes or until a toothpick inserted comes out clean. Let cool completely before adding the frosting (about 20 minutes).
To make the frosting…
- In a medium bowl, cream softened butter and cream cheese until smooth and creamy.
- Add milk and salt; mix together.
- Add 1 cup of sugar at a time, mixing well after each addition.
- Add almond extract and the desired amount of food coloring. Mix until combined.
- Spread on top of cooled blondies. Sprinkle the cereal and sprinkles on top. Cut into bars and enjoy!
Substitutions
If you’re short on ingredients or need to switch things up a bit, here are a few substitution suggestions…
- Oil – you can replace this with melted butter
- Whipping Cream – your blondie will be a little less rich, but you could simply use milk in place of the cream
Variations
Blondie recipes are fun because you can play around with them and they are always delicious in the end! For example…
- Icing Flavors – in the recipe we used almond extract, but you could easily swap that for vanilla, orange, or another extract to make the icing whatever flavor you wanted!
- Change the Theme – if you are making these for a different occasion (not St.Patrick’s Day), switch up the cereal/sprinkles/food color to match the occasion! Having a birthday party? Try Froot Loops, rainbow sprinkles and pink food colouring.
- Box Mix – we used a white cake mix for this recipe, but you could experiment with different types of mix! Yellow cake mix, butter cake mix, or even cherry chip…so many options!
- Store Brand Cereal – You can use a store brand of Lucky Charms instead of General Mills but we’ve tried all kinds and we keep coming back to the OG!
- Extra Lucky Charms Marshmallows – If you really want to load up on Marshmallows, you can try and find the packages of JUST marshmallows!
- Marshmallow Drizzle – Want some extra fun toppings? Drizzle marshmallow cream (or ice cream topping) on top!
Storage
Because there is cream cheese in the frosting, it’s best to store these bars in the fridge. Put them in an airtight container and they should keep for up to a week in the fridge!
Expert Tips and FAQs
Oops, sprinkles have a tendency to leak color and do that. If you would prefer to have a white/plain batter, just leave out the sprinkles. We promise they’ll still feel festive without them.
A typical blondie is essentially a brownie without chocolate (typically vanilla flavored). They are just as decadent and dense as a brownie, but without the chocolate flavors.
Related Recipes
If you’re looking for quick and easy ways to make your St. Patrick’s Day more festive, check out our super fun Lucky Charms Pancakes and this adorable free St. Patrick’s Day printable! Or if you’re looking just to curve that sweets craving, you’ll also love these marshmallow treats!
📖 Recipe
Lucky Charms Blondies
Ingredients
Blondies
- 1 box white cake mix
- 1 large egg
- ⅓ cup oil vegetable or olive work well
- ¼ cup water
- ¼ cup whipping cream 35% cream
- ¾ cup white chocolate chips
- ¼ cup St. Patrick's Day themed sprinkles optional
Frosting
- ½ cup butter 1 stick, softened at room temperature
- 4 ounces cream cheese softened at room temperature
- 1 tablespoon milk
- 4 cups powdered sugar aka icing sugar
- ⅛ teaspoon salt
- 2 teaspoons almond extract
- green food coloring optional
- 1 box Lucky Charms cereal
- St. Patrick's Day themed sprinkles optional
Instructions
Blondies
- Preheat oven to 350°, spray a 9×13 baking dish and set aside.
- In a large bowl combine the cake mix, egg, oil, water, whipping cream, and mix well. Fold in the white chocolate chips and sprinkles.
- Spread the batter evenly in the prepared 9×13 baking dish.
- Bake for 30 minutes or until a toothpick inserted comes out clean. Let cool completely before adding the frosting (about 20 minutes).
Frosting
- In a medium bowl, cream softened butter and cream cheese until smooth and creamy.
- Add milk and salt; mix together.
- Add 1 cup of sugar at a time, mixing well after each addition.
- Add almond extract and the desired amount of food coloring. Mix until combined.
- Spread on top of cooled blondies. Sprinkle the cereal and sprinkles on top. Cut into bars and enjoy!
Notes
Nutrition
Nutritional information is based on third-party calculations and should be considered estimates. Actual nutritional content will vary with brands used, measuring methods, portion sizes and more.
Jen says
Omg, these are SO fun & totally delicious! Can’t wait to make them again for St Patrick’s day!
Jessica says
Hi Jen! Right? I love them all year long but especially for St. Patrick’s Day!
Allyssa says
Thank you so much for sharing this amazing recipe! Will surely have this again! It’s really easy to make and it tasted so delicious! Highly recommended!
Jessica says
Hi Allyssa! You’re so welcome and I’m so glad that you liked these too!
Heidi Schaffer says
These are so much fun! I am so excited to surprise my kids with these when they come home from school!
Jessica says
Aww, such a fun idea to do! I may have to do that too!