Fun Twist on Classic Cookies

Sourdough Cookie Monster Cookies are a playful, colorful twist on traditional chocolate chip cookies. Inspired by the classic Cookie Monster character from Sesame Street, these cookies are perfect for kids and adults alike. Using sourdough starter in place of some eggs gives the cookies a subtle tang and extra chewiness. This method is popular in modern baking circles because it enhances flavor while reducing some of the sugar’s sharpness, making every bite rich and satisfying.

Why Sourdough Starter Works in Cookies

Replacing part of the egg with sourdough starter adds moisture and structure, creating a soft yet chewy texture that is hard to achieve with regular cookies. Sourdough naturally ferments the dough slightly, developing deeper flavors, and the acidity helps balance the sweetness of chocolate chips and Oreos. This unique approach makes these cookies stand out from typical chocolate chip cookies, giving them a slightly tangy undertone that complements the buttery dough and colorful mix-ins.

Loaded with Fun Ingredients

These cookies are as much about fun as flavor. Blue food coloring, candy eyes, chocolate chips, white chocolate chips, and crushed Mini Chips Ahoy make each cookie visually playful and indulgent. The cookies are stuffed with milk chocolate pieces for extra melty goodness inside. Using a variety of textures and colors ensures a playful eating experience while keeping the cookies rich, soft, and full of surprises in every bite.

Ingredients

• ½ cup brown sugar (110 g)
• ¼ cup sugar (50 g)
• ½ cup butter, melted (114 g)
• 1 egg (or sub 50 g sourdough starter per egg)
• 1½ tsp vanilla extract
• 1⅓ cups all-purpose flour (167 g)
• 2 tsp cornstarch
• ½ tsp baking soda
• ½ tsp salt
• Blue food coloring
• ½ cup each: white chocolate chips, semi-sweet chips, chopped Oreos, chopped Mini Chips Ahoy
• 24 milk chocolate bar pieces
• Candy eyes (optional)

Step-by-Step Instructions

Step 1: Mix Wet Ingredients

In a large bowl, combine melted butter with brown and granulated sugar. Add egg or sourdough starter and vanilla extract, mixing until smooth.

Step 2: Combine Dry Ingredients

Sift in flour, cornstarch, baking soda, and salt. Add blue food coloring until the dough reaches a uniform color. Fold in all chips and cookie pieces, then chill the dough for 30–60 minutes.

Step 3: Shape Cookies

Scoop chilled dough and stuff each portion with 2 milk chocolate pieces. Roll into balls and place on a prepared baking sheet.

Step 4: Bake and Decorate

Bake at 375°F (190°C) for 10 minutes. Cool slightly, then add candy eyes or other decorations as desired.

Recipe Timing

• Prep Time: 20 minutes + chilling
• Cook Time: 10 minutes
• Total Time: 30–40 minutes
• Yield: 16 large cookies

Nutrition (per cookie, approx.)

• Calories: 250
• Protein: 3g
• Carbohydrates: 30g
• Fat: 13g
• Sugar: 18g
• Fiber: 1g

Sourdough Cookie Monster Cookies

1. Can I skip the sourdough starter?

Yes, you can use a whole egg instead. Using starter adds tanginess and chewiness but is optional.

2. Can I use different mix-ins?

Absolutely. Try M&Ms, peanut butter chips, or caramel bits. The cookies are very versatile.

3. How do I store them?

Store in an airtight container at room temperature for up to 5 days. Freeze for longer storage.

4. Can I make them smaller?

Yes, just adjust baking time to 8–9 minutes for medium cookies.

5. Can these be vegan?

Replace butter with plant-based butter, chocolate with dairy-free chips, and eggs with flax eggs.