In a medium size bowl, stir together the dry ingredients: oats, brewer’s yeast, flour, baking soda and salt.
In a larger bowl, cream together the softened butter and sugars.
Then stir in the eggs, milk, and vanilla extract until just combined.
Stir the dry ingredients into the wet until a dough forms.
Then stir in the walnuts and chocolate chips.
Spoon the cookie onto a prepared baking sheet covered with parchment paper or a baking mat. Bake at 350°F (177°C) for 8-10 minutes.
Notes
If you or your baby have a sensitivity to milk, you can easily substitute it for any milk alternative you like (oat, soy, etc.).I also highly recommend toasting the walnuts but it’s optional.You can also freeze the cookie dough into balls and bake these in small batches as needed. Or even give the frozen dough to friends who are expecting or just had a baby.