You'll need sugar, flour, and a few other simple ingredients to make this easy recipe.
Add the sugar, brown sugar, and butter into a medium-large bowl and combine until light and fluffy.
Pour in the egg and vanilla and combine again.
Put in the flour, baking soda, and salt and combine again.
Put in the chocolate chips and fold to combine using a rubber spatula.
Add dough to slow cooker and add more chocolate chips. Then cook for 2.5 hours on high or 5 hours on low.
Slice, serve, and enjoy!