This is a recipe that I saw on Petite Pancakery. I modified it, to simplify and get cookies that are very cakey instead of fudgy, but they were great! I doubled the original recipe, which is what I am writing below with my modifications, and I got a total of 8 cookies. (I you want really precise measurements and macros, go to the original post, but I was making this in my home kitchen for a quick dessert without buying any special ingredients.)
¾ cup (90 g) all-purpose flour (my notes say I added about ¼ cup more after this)
50 g vanilla protein powder (I used Cornerstone Wellness, which has lactose-free whey)
4 tsp. of blue spirulina powder (this weighed 10 g for me)
½ tsp. baking powder
¼ tsp. baking soda
¼ tsp. salt
120 g unsweetened applesauce
2 large egg whites
40 g monkfruit sugar (I used evaporated cane juice sugar)
30 g white chocolate chips + more for the top
Preheat the oven to 350 °F. Line a baking sheet with a slipat or parchment paper and set aside.
Whisk together the dry ingredients. Set aside.
Whisk together applesauce, egg whites, and sugar. Add in the dry ingredients and watch the blue color come to life! Combine to form a thick cookie dough. Fold in chocolate chips.
Divide into balls and place on prepared baking sheet. Gently press balls to flatten (if dough is a bit sticky, lightly wet fingertips or back of spoon); top with additional white chocolate chips.
Bake 8-9 minutes (the original recipe said about 8, I baked mine 9). The cookies will "puff" up a bit while cooking, but should deflate when cooling (assuming you haven’t added the extra flour like I did). Once fully cooled, stuff your face like Cookie Monster!