Preheat the oven to 375°F. Line two baking sheets with parchment paper.
In the bowl of a stand mixer fitted with the paddle attachment, add the butter, light brown sugar, and vanilla extract. Mix on low until combined and there’s no butter chunks.
Add the peanut butter, milk, flour, oats, baking soda, and salt. Mix on low until combined into a cookie dough.
Add in the chocolate candies and raisins and mix on low until combined.
Using your hands, form the dough into 16 balls and place on the prepared baking sheets, spacing evenly apart. You’ll have 8 cookies per sheet.
Bake for 13 to 15 minutes or until the cookies look cracked and the edges look dry.
Store in an airtight container for up to 7 days.
Video
Notes
Tips
Always weigh ingredients for the best results.
Make sure your butter is soft. I like to allow butter to soften naturally on the counter before baking.
I use milk in place of eggs in these eggless cookies. Definitely use whole milk as you need that fat, and reduced fat or skim milk is more water, which can dry out cookies.
I add raisins into these Organic Monster Cookies as I love the sweetness paired with the peanut butter, oats, and chocolate candies. These are optional and I’ve made them both ways, so if you don’t want them just leave them out.
Store cookies in an airtight container so these stay soft.
Vegan — Replace the butter and milk with vegan butter (my favorite is Miyoko’s) and the milk with coconut milk for vegan monster cookies.
High Altitude — Bake at 375°F for 11 to 13 minutes or until the cookies look cracked and the edges look dry.