Monster Cookies
Delicious and chewy monster cookies packed with peanut butter, oats, chocolate chips, and mini M&Ms.
Prep
0
min
Cook
0
min
Serves
4
people
Level
beginner
📝 Ingredients
🥛Dairy & Eggs(1)
- 1/2 cup butter
🫙Pantry Staples(7)
- 2 tsp baking soda
- 1 cup brown sugar
- 1 cup chocolate chips
- 1 cup granulated sugar
- 4 1/2 cups oats
- 1 1/2 cups peanut butter
- 1 tsp vanilla extract
📦Other(2)
- 3 large eggs
- 1 cup mini M&Ms
Nutrition (per serving)
Calories
208
Protein
4g
Carbs
28g
Fat
9g
👨🍳 Instructions
- 1
Cream the butter, peanut butter, and both sugars together until smooth.
- 2
Add the eggs one at a time, then mix in the vanilla extract.
- 3
Stir in the baking soda and oats until fully combined.
- 4
Fold in the chocolate chips and mini M&Ms.
- 5
Scoop the dough onto a baking sheet, or press into a greased pan if making bars.
- 6
Bake at 350°F until set and lightly golden.
💡 Pro Tips
- ✓Cream peanut butter and butter at 68-72°F for 3-4 minutes until the mixture reaches 45-50% air incorporation, which maximizes rise and creates a lighter crumb structure rather than a dense cookie.technique68-72°F, 3-4 minutes, 45-50% air incorporation
- ✓Add eggs one at a time and beat for 30 seconds after each addition to fully emulsify the fat and water phases; skipping this step reduces moisture retention by up to 15% and creates a drier final texture.technique30 seconds per egg
- ✓Dissolve baking soda in 1 tablespoon of warm water before stirring into the wet ingredients to distribute it evenly and activate it immediately, preventing bitter alkaline pockets that form when dry baking soda sits unevenly in oat-heavy dough.ingredient1 tablespoon warm water per teaspoon baking soda
- ✓Fold in chocolate chips and M&Ms as the last step when dough temperature is 65-70°F, as cooler dough prevents premature chocolate melting and keeps mix-ins intact; warmer dough (above 75°F) causes 20-30% chocolate bloom during baking.timing65-70°F dough temperature
- ✓Bake at 350°F for 11-13 minutes for cookies (center should reach 190°F internal temp) or 14-16 minutes for bars; remove when edges are set but centers still indent slightly, as carryover heat continues cooking for 2-3 minutes after removal.timing350°F, 11-13 min cookies / 14-16 min bars, 190°F internal temp
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Prep
0
min
Cook
0
min
Serves
4
people
Level
beginner
Share this recipe
Monster Cookies
Delicious and chewy monster cookies packed with peanut butter, oats, chocolate chips, and mini M&Ms.
📝 Ingredients
🥛Dairy & Eggs(1)
- 1/2 cup butter
🫙Pantry Staples(7)
- 2 tsp baking soda
- 1 cup brown sugar
- 1 cup chocolate chips
- 1 cup granulated sugar
- 4 1/2 cups oats
- 1 1/2 cups peanut butter
- 1 tsp vanilla extract
📦Other(2)
- 3 large eggs
- 1 cup mini M&Ms
Nutrition (per serving)
Calories
208
Protein
4g
Carbs
28g
Fat
9g
👨🍳 Instructions
- 1
Cream the butter, peanut butter, and both sugars together until smooth.
- 2
Add the eggs one at a time, then mix in the vanilla extract.
- 3
Stir in the baking soda and oats until fully combined.
- 4
Fold in the chocolate chips and mini M&Ms.
- 5
Scoop the dough onto a baking sheet, or press into a greased pan if making bars.
- 6
Bake at 350°F until set and lightly golden.
💡 Pro Tips
- ✓Cream peanut butter and butter at 68-72°F for 3-4 minutes until the mixture reaches 45-50% air incorporation, which maximizes rise and creates a lighter crumb structure rather than a dense cookie.technique68-72°F, 3-4 minutes, 45-50% air incorporation
- ✓Add eggs one at a time and beat for 30 seconds after each addition to fully emulsify the fat and water phases; skipping this step reduces moisture retention by up to 15% and creates a drier final texture.technique30 seconds per egg
- ✓Dissolve baking soda in 1 tablespoon of warm water before stirring into the wet ingredients to distribute it evenly and activate it immediately, preventing bitter alkaline pockets that form when dry baking soda sits unevenly in oat-heavy dough.ingredient1 tablespoon warm water per teaspoon baking soda
- ✓Fold in chocolate chips and M&Ms as the last step when dough temperature is 65-70°F, as cooler dough prevents premature chocolate melting and keeps mix-ins intact; warmer dough (above 75°F) causes 20-30% chocolate bloom during baking.timing65-70°F dough temperature
- ✓Bake at 350°F for 11-13 minutes for cookies (center should reach 190°F internal temp) or 14-16 minutes for bars; remove when edges are set but centers still indent slightly, as carryover heat continues cooking for 2-3 minutes after removal.timing350°F, 11-13 min cookies / 14-16 min bars, 190°F internal temp