Monster Cookies Recipe (Oatmeal Peanut Butter Drop Cookies)
This Monster cookies recipe is a simple drop-cookie style bake made with oats and peanut butter. You mix the ingredients in one bowl, portion with a spoon, and bake quickly. Follow the how to make steps to keep the dough tender—just mix until combined, then let the cookies set on the tray before moving.
Ingredients
For the dough
Step-by-Step Method
Preheat and prep the tray
Heat the oven to 350°F (175°C). Line a baking sheet with parchment paper or lightly grease it so the cookies release easily.
Cream sugars with margarine
Mix brown sugar, granulated sugar, and margarine until smooth and combined. Keep it brief—don’t overbeat.
Add eggs and vanilla
Add the eggs one at a time, stirring after each. Mix in the vanilla until the batter looks even.
Stir in peanut butter and baking soda
Blend in the peanut butter. Sprinkle in the baking soda and mix so it’s evenly distributed.
Fold in the oats
Add the oats and fold just until a scoopable dough forms. Stop mixing once everything is incorporated.
Scoop the cookies
Drop spoonfuls of dough onto the sheet, leaving space between each one. A slightly damp spoon helps portion neatly.
Bake and cool
Bake for about 15 minutes, until the edges are lightly set. Let the cookies sit on the pan for 5 minutes, then move to a rack to cool completely.