Linda’s Monster Cookies are the ultimate sweet treat for cookie lovers! Loaded with semisweet chocolate chips, candy-coated chocolate pieces, and the perfect balance of chewy oats and buttery richness, these cookies are truly monstrous in both size and flavor. Whether enjoyed fresh from the oven or frozen for later, they are just as chewy and delicious. Plus, the recipe is versatile—halve it for smaller batches or double it for a crowd.
Quick Benefits
These cookies come together quickly with just 15 minutes of prep time and bake in about 10 minutes. They are perfect for parties, holidays, or just satisfying a sweet tooth. Best of all, they freeze wonderfully, maintaining their chewy texture even after being thawed.
Essential Ingredients
- 2 cups light brown sugar
- 2 cups white sugar
- 1 cup margarine
- 1 cup unsalted butter
- 4 eggs
- 2 teaspoons vanilla extract
- 4 cups all-purpose flour
- 4 cups rolled oats
- 2 teaspoons baking soda
- 1 teaspoon baking powder
- 1 teaspoon salt
- 2 cups semisweet chocolate chips
- 1 cup candy-coated chocolate pieces
Preparation Steps
- Preheat the Oven: Preheat to 350°F (175°C) and grease cookie sheets.
- Prepare the Dough: In a very large bowl, beat together brown sugar, white sugar, margarine, and butter until smooth.
- Add Eggs and Vanilla: Beat in eggs one at a time, followed by vanilla extract.
- Mix Dry Ingredients: In a separate bowl, whisk together flour, oats, baking soda, baking powder, and salt.
- Combine and Add Mix-ins: Gradually stir the dry ingredients into the sugar mixture until just combined. Fold in the chocolate chips and candy-coated pieces.
- Shape and Bake: Drop tablespoonfuls of dough onto prepared cookie sheets. Bake for 10 to 11 minutes or until edges are golden (for chewy cookies, remove before they look fully done).
- Cool and Serve: Let cookies cool on the baking sheet for a few minutes before transferring to a wire rack.

Health Benefits
While these cookies are undoubtedly an indulgence, they do offer a bit of protein from the eggs and fiber from the oats. The combination of butter and margarine gives them a soft, chewy texture while balancing flavor. Enjoy them as an occasional treat to satisfy your sweet cravings.
Serving Suggestions
Serve Linda’s Monster Cookies warm from the oven with a cold glass of milk or alongside a scoop of vanilla ice cream. They also make a great addition to holiday cookie platters or dessert buffets.
Creative Variations
- Peanut Butter Delight: Replace half the butter with peanut butter for a nutty twist.
- Fruit and Nut: Add dried cranberries and chopped walnuts for extra texture and flavor.
- Triple Chocolate: Use dark, milk, and white chocolate chips for a decadent combo.
- Gluten-Free Version: Substitute the all-purpose flour with a gluten-free blend.
Storage Tips
Store cookies in an airtight container at room temperature for up to a week. To freeze, place cooled cookies in a single layer on a baking sheet and freeze until firm. Transfer to a freezer-safe bag and store for up to 3 months. Thaw at room temperature or microwave briefly before serving.
Pro Tips
- Use a combination of margarine and butter for the best chewy texture.
- For uniform cookies, use a cookie scoop to portion the dough.
- Don’t overbake! Removing the cookies when they still look slightly underdone ensures a soft, chewy texture.
Frequently Asked Questions
Can I make the dough ahead of time? Yes, refrigerate the dough for up to 48 hours before baking.
Can I use just butter instead of margarine? Absolutely! The cookies will be slightly richer and softer.
How do I keep the cookies chewy? Store them in an airtight container with a slice of bread to maintain moisture.
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Linda’s Monster Cookies: Chewy and Irresistible
Linda’s Monster Cookies are the ultimate chewy and chocolatey treat, loaded with semisweet chocolate chips, candy-coated chocolate pieces, and a delightful combination of rolled oats and rich, buttery dough. These cookies are perfect for satisfying your sweet tooth, and they maintain their chewy texture even after being frozen. Great for parties, holidays, or just enjoying with a glass of milk!
- Total Time: 25 minutes
Ingredients
- 2 cups light brown sugar
- 2 cups white sugar
- 1 cup margarine
- 1 cup unsalted butter
- 4 eggs
- 2 teaspoons vanilla extract
- 4 cups all-purpose flour
- 4 cups rolled oats
- 2 teaspoons baking soda
- 1 teaspoon baking powder
- 1 teaspoon salt
- 2 cups semisweet chocolate chips
- 1 cup candy-coated chocolate pieces
Instructions
- Preheat the Oven: Preheat to 350°F (175°C) and grease cookie sheets.
- Prepare the Dough: In a very large bowl, beat together brown sugar, white sugar, margarine, and butter until smooth.
- Add Eggs and Vanilla: Beat in eggs one at a time, followed by vanilla extract.
- Mix Dry Ingredients: In a separate bowl, whisk together flour, oats, baking soda, baking powder, and salt.
- Combine and Add Mix-ins: Gradually stir the dry ingredients into the sugar mixture until just combined. Fold in the chocolate chips and candy-coated pieces.
- Shape and Bake: Drop tablespoonfuls of dough onto prepared cookie sheets. Bake for 10 to 11 minutes or until edges are golden (for chewy cookies, remove before they look fully done).
- Cool and Serve: Let cookies cool on the baking sheet for a few minutes before transferring to a wire rack.
- Prep Time: 15 minutes
- Cook Time: 10 minutes
- Category: Dessert, Cookies
- Cuisine: American
Nutrition
- Serving Size: 72 (6 dozen)
- Calories: 165 per serving