These Oatmeal Brown Sugar Rhubarb Cookies are a delicious and simple drop rhubarb oatmeal cookie, bursting with cinnamon, brown sugar and orange flavors, and studded with bright pink bits of rhubarb! You can make them with either fresh or frozen rhubarb.
2cupsall -purpose flour* If you are using fresh rhubarb you may need a little less flour. Start off with 1 ¾ cups and add a little more as needed until you get the texture of cookie dough, as shown in photo
Preheat oven to 350 degrees F/ 175 degrees C. Line a cookie sheet with parchment paper or spray with non-stick cooking spray.
Combine butter, sugars, egg, and vanilla extract in a large bowl.
Using an electric mixer, beat until light and fluffy.
Whisk together the flour, cinnamon and baking soda.
Add flour mixture to bowl with butter/sugar mixture and beat with electric mixer until combined.
Add the rolled oats, rhubarb and orange zest.
Mix thoroughly until it forms a cookie dough.
Drop by heaping tablespoonfuls onto parchment paper lined cookie sheets.
Continue to place the cookie dough in heaping tablespoons onto parchment-covered baking sheets.
Bake at 350 degrees F/ 175 degrees C for about 18 minutes.
They should be lightly browned on bottom.
Cool for 3 minutes, then move to a wire rack to cool for an additional 3-5 minutes or until set.*Add a little orange zest to the tops of the cookies, if desired
Notes
*Please see post contents for important recipe information, substitutions and tips!Â