Soak the dates to soften if they are older or really hard. Roughly chop the dates to make it easier for them to break down.
Add the dates, milk, nut butter, vanilla and applesauce or banana to a food processor and process until it forms a paste.
Scrape the sides and add the remaining ingredients except for the chocolate chips. Process until you reach a smooth dough consistency. Stir in the chocolate chips.
Pour into a parchment lined 8-inch round or square pan, smooth the top and bake at 350 for 30-35 minutes. Let cool for 15 minutes before cutting and serving.