Easy Christmas Monster Cookies made with peanut butter, oats, oat flour, holiday M&M’s and white chocolate chips. These no chill holiday cookies are fun, chewy, and kids adore them!
First thing, let your butter soften at room temperature for about 3-4 hours. Peanut butter can be straight from the fridge. Then preheat the oven to 350 degrees F.
In a large bowl, add softened butter, peanut butter and sugar. Using an electric hand mixer, process until creamy. You can also use a stand mixer with a paddle attachment.
Add egg and vanilla extract, and cream for another 30 seconds. Note that egg can be cold. Then add oat flour, oats, baking powder and salt and beat with mixer until cookie dough forms.
Now we can stir in with spatula chocolate chips and candies. Remember, these holiday monster cookies require no chilling of the dough, so we can get straight to baking.
Use a medium size 1 oz cookie scoop to scoop a heaping amount. After you place cookie dough balls on baking tray about 2 inches apart from each other, flatten them a bit.
Bake cookies for 10 minutes and remove them while they appear underbaked. Remove from the oven and let cool for 15 minutes, then transfer on a cooling rack to cool a bit more.
Store in a container for up to 5 days. To freeze, cool cookies completely, place in a resealable plastic bag or container and freeze for up to 3 months. Thaw on a counter for a few hours.