Preheat the oven to 350 degrees F.
Combine the room temperature butter with the white and brown sugar in a medium sized bowl.
Mix the butter and sugars together with hand beaters or in a stand mixer until creamy and fluffy. Mix in the egg and vanilla and beat until just incorporated.
In a separate bowl, combine the flour, baking soda, baking powder, cornstarch, and salt. Stir together and slowly add the dry ingredients to the wet ingredients.
Mix until combined.
With a wooden spoon, stir in one cup of the white chocolate chips. Press the cookie dough into a 9 x 13 pan that has been sprayed with nonstick spray.
Bake the cookie dough for 17-22 minutes or until the edges are lightly browned.
Remove and immediately top with the miniature marshmallows and M&M's. Return to the oven for 1-2 minutes or until the marshmallows become puffy.
Remove and sprinkle the remaining 1/4 cup white chocolate chips and sprinkles over the bars.
Let cool completely and then cut with a wet knife.
View line-by-line Nutrition Insights™: Discover which ingredients contribute the calories/sodium/etc.
|Serving Size: 1 (537g)|
|Recipe Makes: 1|
|Calories from Fat: 1705 (72%)|
|Amt Per Serving||% DV|
|Total Fat 189.4g||253 %|
|Saturated Fat 118.5g||592 %|
|Monounsaturated Fat 49.7g|
|Polyunsanturated Fat 7.6g|
|Cholesterol 677.4mg||208 %|
|Sodium 1544.9mg||53 %|
|Potassium 250.1mg||7 %|
|Total Carbohydrate 163.8g||48 %|
|Dietary Fiber 0.1g||0 %|
|Sugars, other 163.7g|
|Protein 12.2g||17 %|
Powered by: USDA Nutrition Database
Disclaimer: Nutrition facts are derived from linked ingredients (shown at left in colored bullets) and may or may not be complete. Always consult a licensed nutritionist or doctor if you have a nutrition-related medical condition.
Calories per serving: 2354
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