Ingredients You’ll Need
For the best results, use high-quality ingredients. Here’s what you’ll need:
- 1 cup oat flour (or all-purpose flour for a classic texture)
- ½ cup vanilla or unflavored whey protein powder (or plant-based protein powder)
- ½ teaspoon baking soda
- ¼ teaspoon salt
- ½ cup unsalted butter or coconut oil, softened to room temperature
- ⅓ cup coconut sugar (or brown sugar)
- ¼ cup granulated sugar (optional for sweetness balance)
- 1 large egg
- 1 teaspoon pure vanilla extract
- ¾ cup dark or semi-sweet chocolate chips
- Optional: ¼ cup chopped walnuts, pecans, or shredded coconut for extra texture

The Preparation Process
Begin by combining the dry ingredients — oat flour, protein powder, baking soda, and salt — in a medium-sized bowl. Mix them gently with a whisk to distribute everything evenly. In another bowl, cream together the softened butter and sugars using a hand mixer or stand mixer until the mixture becomes light, pale, and fluffy. This process usually takes about 2–3 minutes and helps to aerate the dough, resulting in softer cookies.
Add the egg and vanilla extract to the creamed butter and sugar mixture. Beat again until well incorporated. Gradually fold in the dry ingredients using a spatula or wooden spoon. Stir just until the dough comes together; overmixing can make the cookies tough. Finally, fold in your chocolate chips, ensuring they are evenly distributed throughout the dough.
The Power of Chilling the Dough
This step might seem optional, but it makes a huge difference in your final results. Once your dough is ready, cover it with plastic wrap and refrigerate it for at least 30–45 minutes. Chilling helps the butter solidify, which prevents the cookies from spreading too much while baking. It also allows the flour and protein powder to fully hydrate, giving your cookies a more complex, rich flavor and a perfectly chewy texture.
If you’re short on time, you can even freeze the dough balls for 10–15 minutes before baking — but the longer you chill, the better your cookies will turn out.
Baking the Cookies
Preheat your oven to 350°F (175°C). Line a baking tray with parchment paper or a silicone baking mat to prevent sticking. Scoop out portions of dough (about 1.5 tablespoons each) and roll them into balls. Place them about two inches apart on the baking tray to allow room for spreading.
Bake the cookies for 9 to 11 minutes, depending on your preferred texture. The edges should be lightly golden while the centers remain soft and slightly underbaked. This ensures that deliciously chewy interior once cooled. Keep in mind that cookies continue to cook slightly after being removed from the oven, so don’t overbake them.
Cooling and Finishing Touches
Once baked, let the cookies cool on the tray for about 5 minutes before transferring them to a wire rack. This resting period allows them to set properly and prevents breakage. If desired, press a few extra chocolate chips on top of each cookie right after they come out of the oven for that irresistible, bakery-style look.
As they cool, you’ll notice the chocolate chips staying slightly melted and glossy — a sure sign of a perfect cookie. The aroma filling your kitchen will be rich, buttery, and sweet, making it hard to wait before taking that first bite.
Storage Tips for Freshness
To keep your cookies soft and chewy, store them in an airtight container at room temperature for up to 5 days. If you prefer, refrigerate them for up to a week or freeze them for up to three months. When ready to enjoy, simply warm them in the microwave for 10–15 seconds to restore that fresh-from-the-oven texture.
If you freeze the dough instead of baked cookies, you can bake them directly from frozen — just add an extra minute or two to the baking time.
Customization and Flavor Variations
The beauty of this recipe is its flexibility. You can easily customize it to fit your preferences or dietary needs. For example:
- Vegan Version: Use plant-based protein powder, coconut oil instead of butter, and a flax egg (1 tablespoon ground flaxseed mixed with 3 tablespoons water).
- Gluten-Free Version: Replace flour with almond flour or a gluten-free baking blend.
- Nutty Twist: Add chopped almonds, walnuts, or hazelnuts for crunch.
- Gourmet Touch: Sprinkle flaky sea salt on top of each cookie right after baking.
Each variation brings a new dimension of flavor and texture, ensuring your cookies never feel repetitive.