Lucky Charms Cupcakes
Making Leprechauns proud with these marshmallow-stuffed Lucky Charms Cupcakes! This recipe is one for the pot o' gold.
Servings: 20 cupcakes
Cost: $20
Ingredients
Vanilla Cupcakes
- 2 1/4 cup cake flour
- 1 tbsp baking powder
- 1/2 tsp salt
- 1 1/4 cup whole milk
- 4 large egg whites
- 2 cups granulated sugar
- 1/2 cup butter, room temperature
- 1 1/2 tsp vanilla extract
- 7 ounces marshmallow fluff
- 1 box Lucky Charms Cereal
Buttercream Frosting
- 2 cups unsalted butter 4 sticks - room temperature
- 4 cups confectioners sugar
- 3 tsp vanilla extract
- 5 colors food coloring (green, purple, pink, blue and yellow.
Instructions
Vanilla Cupcakes
- Cake flour (2¼ cups): The secret to that soft, bakery-style crumb — don't swap it for all-purpose! Here's how to measure flour correctly.
- Baking powder (1 tbsp) + salt (½ tsp): For lift and just enough balance to keep it from being too sweet.
- Unsalted butter, room temperature (½ cup): Make sure it's truly softened — cold butter won't cream properly!
- Granulated sugar (2 cups): Sweetens the batter just right without going overboard.
- Egg whites (4 large): Keeps the cake light, fluffy, and bright white so those rainbow colors really pop!!
- Vanilla extract (1½ tsp): Use pure, not imitation — you'll taste the difference.
- Whole milk (1¼ cups): Or use cereal milk — soak the Lucky Charms oat pieces in your 1¼ cups of milk for 30 minutes, strain, and use in the batter for that extra Lucky Charms flavor!!
- Marshmallow fluff (7 oz): The gooey surprise filling inside each cupcake. Store-bought works perfectly or try homemade marshmallow fluff!
- Lucky Charms cereal (1 box): Separate the marshmallows from the oat pieces ahead of time — the oat pieces go into the cereal milk, the marshmallows go inside and on top of each cupcake.
Buttercream Frosting
- Unsalted butter, room temperature (2 cups / 4 sticks): Room temperature is essential for fluffy, creamy frosting.
- Confectioners' sugar (4 cups), sifted: Sifting keeps the frosting silky smooth — don't skip it.
- Vanilla extract (3 tsp): Pure vanilla for the cleanest flavor.
- Gel food coloring in green, purple, pink, blue, and yellow (1–2 drops each): Gel only — liquid food coloring makes frosting too thin and colors look dull. Just a tiny drop of gel gives you vibrant, true color!
Notes
- Add Lucky Charms marshmallows right before serving — they'll get soft if they sit on the frosting too long
- Use gel food coloring only — liquid makes frosting too thin
- Cereal milk tip: soak Lucky Charms oat pieces in milk for 30 min, strain, and use in batter
- Make ahead: bake cupcakes the night before, fill and frost the day of
Nutrition
Calories: 471kcal | Carbohydrates: 64g | Protein: 3g | Fat: 24g | Saturated Fat: 15g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 6g | Trans Fat: 1g | Cholesterol: 63mg | Sodium: 116mg | Potassium: 117mg | Fiber: 0.4g | Sugar: 51g | Vitamin A: 735IU | Vitamin C: 0.01mg | Calcium: 55mg | Iron: 0.2mg
