Sourdough Discard Carrot Cake Salted Caramel Oatmeal Cream Pies

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There are moments in the kitchen when ordinary baking gives way to pure alchemy. You open the fridge on a crisp morning, eye that bubbly sourdough discard, think about that bag of fresh carrots you have, and decide to take the coziest dessert and make it even better.

That is precisely how these Sourdough Discard Carrot Cake Salted Caramel Oatmeal Cream Pies were born.

Imagine taking the nostalgic, soft-baked chew of an old-school Little Debbie oatmeal cream pie, infusing it with the warm spice profile of a bakery-style carrot cake, studding it with molten pockets of gooey salted caramel, and holding it all together with a silky, tangy cream cheese frosting. It’s not just a cookie—it’s an experience.

🌾 The Magic of Sourdough Discard in Sweet Bakes

If you’re a sourdough baker, you know the subtle guilt of accumulating discard. While savory crackers, waffles, and pizza crusts are great, sourdough discard possesses an unsung superpower in sweet baking:

1. Unmatched Softness: The mild acids in unfed sourdough discard gently break down gluten proteins in the flour, yielding a ridiculously tender, melt-in-your-mouth crumb.

2. Depth of Flavor: It doesn't make the cookie taste sour or bread-like. Instead, it adds a subtle, complex background note that cuts through heavy sugar, elevating warm cinnamon, nutmeg, and vanilla.

3. Zero Waste Satisfaction: Turning leftover discard into a luxury dessert feels like the ultimate kitchen win.

(No sourdough starter on hand? No problem at all—you can omit the discard completely and these cookies will still turn out outrageously delicious!)

🥕 The Anatomy of the Perfect Cookie Sandwich

What makes this recipe an absolute crowd-pleaser is the deliberate contrast of textures and flavors built into every single layer:

• The Hearty Chew of Old-Fashioned Oats: Provide structure and that classic, cozy, home-baked texture.

• Finely Shredded Carrots: Moisture-packed and bright, adding natural sweetness and gorgeous orange specks throughout the dough.

• Gooey Caramel Pockets: Hand-pulled bits of soft caramel (like Bettergoods) melt directly into the dough as it bakes, creating irresistible, stringy caramel pools.

• The Cornstarch Trick: A single tablespoon of cornstarch keeps the centers soft and pillow-like for days.

• Silky Cream Cheese Frosting: Creamy, tangy, and sweetened just enough with powdered sugar to tie the warm spices together.

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🧾 The Recipe: Sourdough Discard Carrot Cake Salted Caramel Oatmeal Cream Pies

• Prep time: 25 minutes | Bake time: 12–14 minutes | Yield: 12 Large Sandwich Cookies (24 individual cookies)
  

🍪 Ingredients

Carrot Cake Oatmeal Cookies

• ¾ cup unsalted butter, softened to room temperature

• 1 cup light brown sugar, packed

• ¼ cup granulated sugar

• 2 large eggs, room temperature

• 1 tsp pure vanilla extract

• ¼ cup sourdough discard (optional, but recommended!)

• 1 cup finely shredded fresh carrots

• 1½ cups all-purpose flour

• 1 tsp baking powder

• 1 tbsp cornstarch

• 1½ tsp ground cinnamon

• ½ tsp ground nutmeg

• ½ tsp fine sea salt

• 3 cups old-fashioned rolled oats

• 5–7 soft caramels (e.g., Bettergoods), pulled apart into small bite-sized pieces
  

🍦 Cream Cheese Filling

• 8 oz (1 block) cream cheese, softened

• 8 tbsp (1 stick) unsalted butter, softened

• 2½ cups powdered sugar, sifted

• 1 tsp pure vanilla extract

• 1–2 tbsp milk (used instead of heavy cream for a lighter, spreadable consistency)
  

👩‍🍳 Step-by-Step Instructions

Step 1: Cream for Airiness

Preheat your oven to 350°F (175°C) and line two large baking sheets with parchment paper. In a large mixing bowl (or stand mixer fit with the paddle attachment), beat the softened butter, light brown sugar, and granulated sugar on medium-high speed for 2 full minutes until pale, fluffy, and well combined.

Step 2: Build the Wet Foundation

Add the eggs, vanilla extract, and sourdough discard to the butter mixture. Beat until completely smooth and incorporated. Gently fold in the 1 cup of finely shredded carrots until evenly distributed.

Step 3: Whisk & Fold the Dry Ingredients

In a separate medium bowl, whisk together the all-purpose flour, baking powder, cornstarch, ground cinnamon, nutmeg, salt, and old-fashioned oats. Add the dry ingredients into the wet mixture, folding with a spatula until just combined—be careful not to overmix! Finally, gently fold in your pulled caramel pieces.

Step 4: Scoop & Bake

Scoop the dough into 24 equal portions (a medium cookie scoop works wonders here) and arrange them on your prepared baking sheets, leaving about 2 inches of space between each. Top each cookie with a small caramel chunk if you want a nice pool of caramel on top. Bake for 12–14 minutes, or until the edges are lightly golden and set, but the centers remain soft and slightly puffy.

💡 Baker's Pro-Tip ("The Cookie Scoot"): Immediately after pulling the tray from the oven, take a round biscuit cutter or a wide glass (slightly larger than the cookies), place it over a warm cookie, and gently swirl/scoot it in small circles against the tray. This tucks in stray caramel or oat edges and gives you 24 perfectly round, bakery-worthy discs!

Step 5: Cool Completely

Allow the cookies to rest on the hot baking sheet for 5 minutes before transferring them to a wire rack to cool completely. (If you assemble while warm, the cream cheese filling will melt right off!)

Step 6: Whip the Cream Cheese Filling

In a clean bowl, beat the softened cream cheese, butter, and vanilla extract until completely smooth and lump-free. Gradually add in the powdered sugar, half a cup at a time, beating on low speed until combined, then high speed until light and fluffy. Splash in 1 to 2 tablespoons of milk as needed to reach a smooth, pipeable consistency.

Step 7: Assemble & Chill

Flip half of the cooled cookies upside down. Pipe or spoon a generous round of cream cheese filling onto the flat side, then top with the remaining cookies to form your sandwiches.

• To Serve Immediately: Enjoy right away for maximum soft-baked, gooey caramel pulls.

• To Serve Chilled: Pop the assembled sandwiches in the fridge for 20–30 minutes. This sets the cream cheese filling into a clean, firm layer that won't squeeze out when you take a bite!
  

☕ How to Enjoy & Store

• Pairing: Serve these with a hot shot of espresso, a spiced chai latte, or a cold glass of oat milk.

• Storage: Store leftovers in an airtight container in the refrigerator for up to 5 days (the cream cheese filling requires refrigeration). Bring to room temperature 10 minutes before eating for optimum soft texture!