How many servings does this recipe make?

This recipe makes 4 servings. You can adjust the portion size directly on this page.

What ingredients do I need for Monster Cookie?

You need 11 ingredients. The key ingredients include: 12 eggs, 4 cups (950 ml) brown sugar, 4 cups (950 ml) white sugar, 1 tbsp (15 ml). light Karo, and more.

Is Monster Cookie suitable as baking & desserts?

Yes, Monster Cookie falls under the Baking & Desserts category and is a great choice for this type of meal.

How do I store leftover Monster Cookie?

Store in an airtight container at room temperature for up to 3–5 days. For longer storage, freeze for up to 3 months — no need to refrigerate or reheat.

Monster Cookie Recipe

Name: Monster Cookie
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Yield: 4 servings
Ingredients: 12 eggs; 4 cups (950 ml) brown sugar; 4 cups (950 ml) white sugar; 1 tbsp (15 ml). light Karo; 1 tbsp (15 ml). vanilla extract; 2 tbsp (30 ml). + 2 tsp (10 ml). baking soda; 1 lb (.5 kg). butter; 3 lbs (1.4 kg). peanut butter; ⅛ cups (4250 ml) oatmeal; 1 lb (.5 kg). chocolate chips; 1 lb (.5 kg). M & M candies

Bake this irresistible Monster Cookie at home. Made with eggs, brown sugar, white sugar and light Karo. Easy step-by-step instructions included.

This Monster Cookie relies on simple, everyday ingredients such as eggs, (950 ml) brown sugar, (950 ml) white sugar and (15 ml). light karo. It comes together quickly and makes 4 servings, at about 5482 kcal each. The step-by-step instructions below are written to be easy to follow, even on a busy day.

Whether you're rounding off a family dinner, bringing a treat to a gathering, or simply satisfying a sweet craving, this Monster Cookie delivers. Serve it warm or at room temperature, and add a scoop of ice cream or a spoonful of whipped cream for an extra-special finish.

Updated Jun 30, 2026

Serves 4 Baking & Desserts

5482

kcal

Calories

Tips for the best results

Read through all the steps once before you start and measure out your ingredients first — it makes everything go more smoothly.
Preheat the oven fully and bake on the middle rack for the most even results.
Check for doneness a few minutes early — a toothpick in the center should come out with just a few moist crumbs.
Let it cool before slicing so it sets properly and holds its shape.
Store leftovers in an airtight container in the fridge and enjoy within a few days.

Variations & substitutions

Use a neutral oil or a plant-based spread in place of butter for a dairy-free version.
Brown sugar instead of white sugar adds a deeper, more caramel-like flavor.

No specific allergen information. Please check the ingredient list for possible allergens.

My Personal Notes

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Monster Cookie

Tips for the best results

Variations & substitutions

My Personal Notes

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