Beat butter and both sugars in a large bowl until creamy. Add eggs and vanilla, beat well. In a separate bowl, combine flour and baking soda. Add to butter mixture, beat well. Stir in oats and cinnamon chips. Batter will be stiff.
Spread batter into lightly greased 13x9x2-inch baking pan. Bake at 350°F. for about 20 minutes, then cover with aluminum foil to prevent bars from over browning.. Bake an additional 5 to 10 minutes, or until center is set and bars are lightly browned. Cool; cut into bars. About 3 dozen bars.
Recipe by Cook The Tv at https://www.cookthetv.com/cinnamon-oat-bars/