Mix your favourite leftover halloween candy into this easy oatmeal cookie dough and make these delicious leftover halloween candy oatmeal cookies!
Halloween comes and goes and then you're left with all buckets of candy sitting around. These cookies contains a mixture of different candy bars including Kit Kat, Reese's Cups, Oh Henry, and M&Ms.
This recipe is the perfect way to use up leftover halloween candy.
These cookies require no chill time either, so you get your cookies even faster!
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Why this recipe works
Easy to make - No chill time or electric mixer required.
Halloween candy - A great way to use up your leftover halloween chocolate bars.
Cookies - Chewy and soft cookies with hearty oats.
Ingredients Notes
Full recipe and ingredients are in the recipe card below. Feel free to scroll through this section to view the ingredients we’re using!
Brown sugar – I used dark brown sugar for this recipe, but light brown works as well.
Egg – Remove 2 hours prior to baking.
Flour – I used all-purpose flour for this recipe.
Halloween candy - You can use any leftover chocolate bars you have! I used Reese's, Oh Henry, Kit Kat, and M&M's.
Oats: Rolled oats work great for this recipe.
White sugar – Using granulated sugar adds to the crisp edges and sweetness to the cookies.
Vanilla – Using a good quality vanilla is key to adding flavour to the cookies!
Step by step instructions
Here is how to make and bake these Leftover Halloween Candy Oatmeal Cookies. You will need one tray lined with parchment paper, a large mixing bowl, a spatula, a whisk, and a standard ice cream scoop.
Step 1 – Prep. Melt the butter. Allow it to cool as you prep the rest of your ingredients. Remove the egg from the fridge and allow to come to room temperature. Chop the chocolate bars you want to use and set aside.
Step 2 – Mix dry ingredients. In a medium bowl, add in flour, oats, cinnamon, cornstarch, baking soda, baking powder, and salt.
Step 3 – Mix wet ingredients. In a medium bowl, add in butter, brown sugar, and white sugar. Whisk together.
Step 4 – Mix in egg and vanilla. Add in the egg and vanilla and whisk well.
Step 5 – Add in dry ingredients. Mix until a soft cookie dough forms. Don’t overmix!
Step 6 – Mix in add-ins. Toss in the leftover halloween chocolate bars and mix together.
Step 7 – Scoop and bake. Scoop the cookies onto the prepared baking tray. Bake 6 at a time for 10-13 minutes or until the middle has set.
Store in an airtight container for up to 3 days or in the fridge for a week. You can also freeze the cookies and thaw in the microwave when wanted.
Expert Baking Tips
Here are a few baking tips from my kitchen to yours
- Don’t over mix the dough once the dry ingredients are added. If you over mix, the dough will appear more dry and tough.
- Use any chocolate bars. You can use any type of chocolate bar. I used a mix of Kit Kat, Reese's, Oh Henry, and M&M's.
- Bake the cookies right away. As soon as you add in the dry ingredients, the leavening agents begin to work. If you let the dough sit, the cookies won’t spread as much in the oven.
- Make sure your ingredients are at room temperature before beginning.
- Make sure the flour is spooned and leveled properly. If you stick the measuring cup into the flour, this will compact it. A scale will give you the most accurate measurements.
FAQ
Do I have to add oats?
Yes!
How do I keep my cookies soft?
Storing in an airtight container, using dark brown sugar (instead of light brown) as it carries more molasses, and underbaking the cookies!
What candy bars should I use?
You can use any chocolate bars you have on hand. I used M&M's, Oh Henry, Kit Kat, and Reese's. That's the beauty of this recipe! Just make sure your total adds up to 1 cup of chopped chocolate.
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Leftover Halloween Candy Oatmeal Cookies
Ingredients
- 1/2 cup unsalted butter melted and slightly cooled
- 1/2 cup dark brown sugar or light brown sugar
- 1/3 cup white sugar
- 1 tbsp vanilla
- 1 egg room temperature
- 1 1/2 cups rolled oats or large flake oats
- 1 cup all-purpose flour
- 1 tbsp cornstarch
- 3/4 tsp baking soda
- 1/2 tsp baking powder
- 1/4 tsp salt
- 1/2 tsp cinnamon
- 1 cup leftover halloween candy* about 15 bite-sized chocolate bars
Instructions
- Preheat oven to 350°F. Line a cookie sheet with parchment paper. Melt the butter and allow it to cool. Chop the halloween candy and set aside.1 cup leftover halloween candy*
- In a medium bowl, add in flour, oats, cinnamon, cornstarch, baking powder, baking soda, and salt.1 1/2 cups rolled oats, 1 cup all-purpose flour, 1 tbsp cornstarch, 3/4 tsp baking soda, 1/2 tsp baking powder, 1/4 tsp salt, 1/2 tsp cinnamon
- In a large bowl, whisk cooled butter, brown sugar, and white sugar. Add in egg and vanilla and whisk in.1/2 cup unsalted butter, 1/2 cup dark brown sugar, 1/3 cup white sugar, 1 tbsp vanilla, 1 egg
- Add in the dry ingredients and mix until a soft cookie dough forms. Don't over-mix!
- Add in the leftover halloween candy and mix in a few times.
- Scoop 6 cookie dough balls (about 1.5 tbsp per cookie) and place on the prepared cookie sheet.
- Bake for 10-15 minutes. Mine took 13 minutes. The cookies will be ready when the edges are a golden brown, but the inside will look very soft. Remove from oven, let the cookies cool on the hot pan for a few minutes before serving warm or cool completely and enjoy!
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