Ingredients
Method
- Whisk together flour, cornstarch, baking soda, and salt in a medium bowl.
- Cream 10 tbsp unsalted butter and granulated sugar until fluffy. Beat in oil, egg, yolk, and vanilla.
- Gradually add dry ingredients to wet, mixing on low until just combined. Chill dough for 30 minutes.
- Bake rounded tablespoons of dough at 350°F (175°C) for 9-11 minutes until edges are golden. Cool completely.
- For frosting, beat 3/4 cup unsalted butter until creamy. Gradually add 3 cups powdered sugar, milk, and 1 tsp vanilla extract until smooth. Spread over cooled cookies and top with Lucky Charms marshmallows.
Notes
- For the perfect chew, do not overmix the dough once the flour is added. Mix until just combined.
- If your dough is too sticky to handle after chilling, add a tablespoon of flour at a time until it's more manageable.
- Ensure your cookies are completely cooled before frosting to prevent the frosting from melting and sliding off.
- To achieve perfectly soft centers, bake until the edges are lightly golden but the centers still look slightly underdone; they will continue to set as they cool.
- Store frosted Lucky Charms cookies in an airtight container at room temperature for up to 3 days, or in the refrigerator for up to 5 days. For longer storage, freeze unfrosted cookie dough balls for up to 2 months and bake from frozen, adding a couple of minutes to the bake time. Nutrition information is an estimate, calculated automatically. Values vary with brands, substitutions and portion sizes.
- If your dough is too sticky to handle after chilling, add a tablespoon of flour at a time until it's more manageable.
- Ensure your cookies are completely cooled before frosting to prevent the frosting from melting and sliding off.
- To achieve perfectly soft centers, bake until the edges are lightly golden but the centers still look slightly underdone; they will continue to set as they cool.
- Store frosted Lucky Charms cookies in an airtight container at room temperature for up to 3 days, or in the refrigerator for up to 5 days. For longer storage, freeze unfrosted cookie dough balls for up to 2 months and bake from frozen, adding a couple of minutes to the bake time. Nutrition information is an estimate, calculated automatically. Values vary with brands, substitutions and portion sizes.